.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ArrayBytesToStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
mov       edx,[rdx+8]
 
add       edx,edx
 
mov       rcx,rsi
 
call      qword ptr [7FFD31F4D050]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       edi,edi
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+280]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
lea       rcx,[rcx+r8+10]
 
mov       r8,1ED80C00428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,22E12B27688
 
call      qword ptr [7FFD31F04E10]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L01
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L02
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L02
 
M00_L01
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L02
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFD31F4D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,edi
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFD31F696D0]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFD31CD7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFD31C34000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFD327DC7F8]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFD31C34000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322DF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E3D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFD31C34000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322DF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E3D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,1D0B26C2BBFF
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFD31F04828]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,1D0B26C2BBFF
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFD31F04390]
 
mov       rcx,1D0B26C2BBFF
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFD31FEE8C8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFD31FEE370]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFD327D6130]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,1ED80C00298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFD3276C720]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFD32766508]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFD327AD3E0]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFD3276C828]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFD31E3C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,1ED80C01DE8
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFD320A7320]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,1D0B26C2BBFF
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFD31F044B0]
 
mov       rcx,1D0B26C2BBFF
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M03_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M03_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M03_L02
 
test      r8b,18
 
jne       short M03_L01
 
test      r8b,4
 
je        short M03_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M03_L00
  
ret
 
M03_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M03_L00
 
M03_L02
  
cmp       r8,40
 
ja        short M03_L06
 
M03_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M03_L10
 
M03_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M03_L00
 
M03_L05
  
test      r8,r8
 
je        short M03_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M03_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M03_L00
 
M03_L06
  
cmp       r8,800
 
ja        short M03_L09
 
mov       r9,r8
 
shr       r9,6
 
M03_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M03_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M03_L03
 
jmp       short M03_L04
 
M03_L08
  
cmp       rcx,rdx
 
je        near ptr M03_L00
 
M03_L09
  
jmp       qword ptr [7FFD31E35B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M03_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M03_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M04_L03
 
cmp       r8d,esi
 
jl        near ptr M04_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M04_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M04_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M04_L00
  
cmp       ebp,r10d
 
ja        near ptr M04_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M04_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFD31F4DA58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M04_L07
 
M04_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M04_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C34000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFD322DF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E3D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L04
  
test      eax,eax
 
jne       short M04_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M04_L00
 
M04_L05
  
call      qword ptr [7FFD320857E8]
 
int       3
 
M04_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M04_L02
 
M04_L07
  
call      qword ptr [7FFD32085800]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M05_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M05_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M05_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M05_L02
 
cmp       [rdx+8],r8d
 
jb        short M05_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M05_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M05_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C34000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322DF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E3D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L03
  
mov       rax,22E12B10008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ArrayBytesToStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
mov       edx,[rdx+8]
 
add       edx,edx
 
mov       rcx,rsi
 
call      qword ptr [7FFD3203C150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       edi,edi
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+280]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
lea       rcx,[rcx+r8+10]
 
mov       r8,1750F400428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,1B5A1407688
 
call      qword ptr [7FFD31F74810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L01
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L02
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L02
 
M00_L01
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L02
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFD3203CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,edi
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFD3202EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFD31CF7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFD31C54000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFD327EC7F8]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFD31C54000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322EF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E5D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFD31C54000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322EF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E5D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,0F8EE906D73E6
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFD31F74228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,0F8EE906D73E6
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFD31F4FD20]
 
mov       rcx,0F8EE906D73E6
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFD31F1F8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFD31F1F360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFD327E6130]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,1750F400298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFD3277C720]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFD32776508]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFD327BD3E0]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFD3277C828]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFD31E5C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,1750F405D00
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFD320B75C8]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,0F8EE906D73E6
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFD31F4FE40]
 
mov       rcx,0F8EE906D73E6
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M03_L03
 
test      r8b,18
 
jne       short M03_L01
 
test      r8b,4
 
je        short M03_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M03_L00
  
ret
 
M03_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M03_L00
 
M03_L02
  
test      r8,r8
 
je        short M03_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M03_L06
 
jmp       short M03_L00
 
M03_L03
  
cmp       r8,40
 
ja        short M03_L07
 
M03_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M03_L11
 
M03_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M03_L00
 
M03_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M03_L00
 
M03_L07
  
cmp       r8,800
 
ja        short M03_L10
 
mov       r9,r8
 
shr       r9,6
 
M03_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M03_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M03_L04
 
jmp       short M03_L05
 
M03_L09
  
cmp       rcx,rdx
 
je        near ptr M03_L00
 
M03_L10
  
jmp       qword ptr [7FFD31E55B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M03_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M03_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M04_L03
 
cmp       r8d,esi
 
jl        near ptr M04_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M04_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M04_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M04_L00
  
cmp       ebp,r10d
 
ja        near ptr M04_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M04_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFD3203CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M04_L07
 
M04_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M04_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C54000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFD322EF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E5D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L04
  
test      eax,eax
 
jne       short M04_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M04_L00
 
M04_L05
  
call      qword ptr [7FFD31F9E9D0]
 
int       3
 
M04_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M04_L02
 
M04_L07
  
call      qword ptr [7FFD31F9E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M05_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M05_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M05_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M05_L02
 
cmp       [rdx+8],r8d
 
jb        short M05_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M05_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M05_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C54000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322EF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E5D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L03
  
mov       rax,1B5A13F0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ArrayBytesToStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
mov       edx,[rdx+8]
 
add       edx,edx
 
mov       rcx,rsi
 
call      qword ptr [7FFD3201C150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       edi,edi
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
mov       rcx,[rbx+280]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
lea       rcx,[rcx+r8+10]
 
mov       r8,1FCF4400428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,23D86377688
 
call      qword ptr [7FFD31F54810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L04
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
M00_L01
  
mov       [rsi+18],ebp
 
M00_L02
  
inc       edi
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,edi
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFD3200EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbp,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbp+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       r8d,r8d
 
mov       [rbp+8],r8
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L04
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L01
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFD3201CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M00_L02
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFD31CD7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFD31C34000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFD327CC978]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFD31C34000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322CF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E3D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFD31C34000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322CF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E3D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,462046C4385
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFD31F54228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,462046C4385
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFD31F2FD20]
 
mov       rcx,462046C4385
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFD31EFF8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFD31EFF360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFD327C65E0]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,1FCF4400298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFD3275C720]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFD32756508]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFD3279D710]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFD3275C828]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFD31E3C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,1FCF4405D00
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFD320975C8]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,462046C4385
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFD31F2FE40]
 
mov       rcx,462046C4385
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C34000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322CF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E3D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,23D86360008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M04_L03
 
test      r8b,18
 
jne       short M04_L01
 
test      r8b,4
 
je        short M04_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M04_L00
  
ret
 
M04_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M04_L00
 
M04_L02
  
test      r8,r8
 
je        short M04_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M04_L06
 
jmp       short M04_L00
 
M04_L03
  
cmp       r8,40
 
ja        short M04_L07
 
M04_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M04_L11
 
M04_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M04_L00
 
M04_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M04_L00
 
M04_L07
  
cmp       r8,800
 
ja        short M04_L10
 
mov       r9,r8
 
shr       r9,6
 
M04_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M04_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M04_L04
 
jmp       short M04_L05
 
M04_L09
  
cmp       rcx,rdx
 
je        near ptr M04_L00
 
M04_L10
  
jmp       qword ptr [7FFD31E35B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M04_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M04_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M05_L03
 
cmp       r8d,esi
 
jl        near ptr M05_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M05_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M05_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M05_L00
  
cmp       ebp,r10d
 
ja        near ptr M05_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M05_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFD3201CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M05_L07
 
M05_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M05_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C34000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFD322CF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E3D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L04
  
test      eax,eax
 
jne       short M05_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M05_L00
 
M05_L05
  
call      qword ptr [7FFD31F7E9D0]
 
int       3
 
M05_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M05_L02
 
M05_L07
  
call      qword ptr [7FFD31F7E9E8]
 
int       3
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ArrayBytesToStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
mov       edx,[rdx+8]
 
add       edx,edx
 
mov       rcx,rsi
 
call      qword ptr [7FFD3203C150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       edi,edi
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
mov       rcx,[rbx+280]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
lea       rcx,[rcx+r8+10]
 
mov       r8,1E09E000428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,2212FFB7688
 
call      qword ptr [7FFD31F74810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L04
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
M00_L01
  
mov       [rsi+18],ebp
 
M00_L02
  
inc       edi
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,edi
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFD3202EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbp,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbp+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       r8d,r8d
 
mov       [rbp+8],r8
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L04
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L01
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFD3203CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M00_L02
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFD31CF7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFD31C54000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFD327EC948]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFD31C54000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322EF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E5D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFD31C54000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322EF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E5D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,0A7766B14D179
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFD31F74228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,0A7766B14D179
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFD31F4FD20]
 
mov       rcx,0A7766B14D179
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFD31F1F8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFD31F1F360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFD327E64F0]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,1E09E000298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFD3277C720]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFD32776508]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFD327BD710]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFD3277C828]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFD31E5C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,1E09E005D00
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFD320B75C8]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,0A7766B14D179
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFD31F4FE40]
 
mov       rcx,0A7766B14D179
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C54000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322EF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E5D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,2212FFA0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M04_L03
 
test      r8b,18
 
jne       short M04_L01
 
test      r8b,4
 
je        short M04_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M04_L00
  
ret
 
M04_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M04_L00
 
M04_L02
  
test      r8,r8
 
je        short M04_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M04_L06
 
jmp       short M04_L00
 
M04_L03
  
cmp       r8,40
 
ja        short M04_L07
 
M04_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M04_L11
 
M04_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M04_L00
 
M04_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M04_L00
 
M04_L07
  
cmp       r8,800
 
ja        short M04_L10
 
mov       r9,r8
 
shr       r9,6
 
M04_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M04_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M04_L04
 
jmp       short M04_L05
 
M04_L09
  
cmp       rcx,rdx
 
je        near ptr M04_L00
 
M04_L10
  
jmp       qword ptr [7FFD31E55B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M04_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M04_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M05_L03
 
cmp       r8d,esi
 
jl        near ptr M05_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M05_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M05_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M05_L00
  
cmp       ebp,r10d
 
ja        near ptr M05_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M05_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFD3203CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M05_L07
 
M05_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M05_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C54000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFD322EF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E5D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L04
  
test      eax,eax
 
jne       short M05_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M05_L00
 
M05_L05
  
call      qword ptr [7FFD31F9E9D0]
 
int       3
 
M05_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M05_L02
 
M05_L07
  
call      qword ptr [7FFD31F9E9E8]
 
int       3
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ArrayBytesToStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
mov       edx,[rdx+8]
 
add       edx,edx
 
mov       rcx,rsi
 
call      qword ptr [7FFD3203C150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       edi,edi
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+280]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
lea       rcx,[rcx+r8+10]
 
mov       r8,24F94C00428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,290269E76A8
 
call      qword ptr [7FFD31F74810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L01
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L02
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L02
 
M00_L01
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L02
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFD3203CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,edi
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFD3202EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFD31CF7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFD31C54000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFD327EDD28]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFD31C54000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322EF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E5D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFD31C54000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322EF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E5D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,2973701F7525
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFD31F74228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,2973701F7525
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFD31F4FD20]
 
mov       rcx,2973701F7525
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFD31F1F8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFD31F1F360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFD327E75A0]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,24F94C00298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFD3277DD28]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFD327778B8]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFD327BE940]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFD3277DE30]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFD31E5C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,24F94C05D00
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFD320B75C8]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,2973701F7525
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFD31F4FE40]
 
mov       rcx,2973701F7525
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M03_L03
 
test      r8b,18
 
jne       short M03_L01
 
test      r8b,4
 
je        short M03_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M03_L00
  
ret
 
M03_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M03_L00
 
M03_L02
  
test      r8,r8
 
je        short M03_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M03_L06
 
jmp       short M03_L00
 
M03_L03
  
cmp       r8,40
 
ja        short M03_L07
 
M03_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M03_L11
 
M03_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M03_L00
 
M03_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M03_L00
 
M03_L07
  
cmp       r8,800
 
ja        short M03_L10
 
mov       r9,r8
 
shr       r9,6
 
M03_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M03_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M03_L04
 
jmp       short M03_L05
 
M03_L09
  
cmp       rcx,rdx
 
je        near ptr M03_L00
 
M03_L10
  
jmp       qword ptr [7FFD31E55B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M03_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M03_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M04_L03
 
cmp       r8d,esi
 
jl        near ptr M04_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M04_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M04_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M04_L00
  
cmp       ebp,r10d
 
ja        near ptr M04_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M04_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFD3203CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M04_L07
 
M04_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M04_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C54000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFD322EF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E5D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L04
  
test      eax,eax
 
jne       short M04_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M04_L00
 
M04_L05
  
call      qword ptr [7FFD31F9E9D0]
 
int       3
 
M04_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M04_L02
 
M04_L07
  
call      qword ptr [7FFD31F9E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M05_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M05_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M05_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M05_L02
 
cmp       [rdx+8],r8d
 
jb        short M05_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M05_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M05_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C54000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322EF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E5D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L03
  
mov       rax,290269D0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ArrayBytesToStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
mov       edx,[rdx+8]
 
add       edx,edx
 
mov       rcx,rsi
 
call      qword ptr [7FFD3200C150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       edi,edi
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
mov       rcx,[rbx+280]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
lea       rcx,[rcx+r8+10]
 
mov       r8,29ED3000428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,2DF64D476A8
 
call      qword ptr [7FFD31F44810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L04
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
M00_L01
  
mov       [rsi+18],ebp
 
M00_L02
  
inc       edi
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,edi
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFD31FFEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbp,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbp+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       r8d,r8d
 
mov       [rbp+8],r8
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L04
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L01
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFD3200CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M00_L02
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFD31CC7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFD31C24000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFD327BDF38]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFD31C24000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322BF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E2D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFD31C24000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322BF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E2D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,72376B527958
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFD31F44228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,72376B527958
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFD31F1FD20]
 
mov       rcx,72376B527958
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFD31EEF8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFD31EEF360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFD327B7AC8]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,29ED3000298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFD3274DD28]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFD327478B8]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFD3278EC70]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFD3274DE30]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFD31E2C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,29ED3005D00
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFD320875C8]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,72376B527958
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFD31F1FE40]
 
mov       rcx,72376B527958
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C24000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322BF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E2D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,2DF64D30008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M04_L03
 
test      r8b,18
 
jne       short M04_L01
 
test      r8b,4
 
je        short M04_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M04_L00
  
ret
 
M04_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M04_L00
 
M04_L02
  
test      r8,r8
 
je        short M04_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M04_L06
 
jmp       short M04_L00
 
M04_L03
  
cmp       r8,40
 
ja        short M04_L07
 
M04_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M04_L11
 
M04_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M04_L00
 
M04_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M04_L00
 
M04_L07
  
cmp       r8,800
 
ja        short M04_L10
 
mov       r9,r8
 
shr       r9,6
 
M04_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M04_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M04_L04
 
jmp       short M04_L05
 
M04_L09
  
cmp       rcx,rdx
 
je        near ptr M04_L00
 
M04_L10
  
jmp       qword ptr [7FFD31E25B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M04_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M04_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M05_L03
 
cmp       r8d,esi
 
jl        near ptr M05_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M05_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M05_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M05_L00
  
cmp       ebp,r10d
 
ja        near ptr M05_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFD31E25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M05_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFD3200CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M05_L07
 
M05_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFD31E25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M05_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C24000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFD322BF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E2D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L04
  
test      eax,eax
 
jne       short M05_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M05_L00
 
M05_L05
  
call      qword ptr [7FFD31F6E9D0]
 
int       3
 
M05_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M05_L02
 
M05_L07
  
call      qword ptr [7FFD31F6E9E8]
 
int       3
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ArrayBytesToStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
mov       edx,[rdx+8]
 
add       edx,edx
 
mov       rcx,rsi
 
call      qword ptr [7FFD3201C150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       edi,edi
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
mov       rcx,[rbx+280]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
lea       rcx,[rcx+r8+10]
 
mov       r8,26D0FC00428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,2ADA19E76A8
 
call      qword ptr [7FFD31F54810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L04
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
M00_L01
  
mov       [rsi+18],ebp
 
M00_L02
  
inc       edi
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,edi
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFD3200EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbp,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbp+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       r8d,r8d
 
mov       [rbp+8],r8
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L04
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L01
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFD3201CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M00_L02
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFD31CD7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFD31C34000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFD327CDD28]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFD31C34000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322CF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E3D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFD31C34000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322CF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E3D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,9E0B7497D226
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFD31F54228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,9E0B7497D226
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFD31F2FD20]
 
mov       rcx,9E0B7497D226
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFD31EFF8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFD31EFF360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFD327C75A0]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,26D0FC00298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFD3275DD28]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFD327578B8]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFD3279E940]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFD3275DE30]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFD31E3C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,26D0FC05D00
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFD320975C8]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,9E0B7497D226
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFD31F2FE40]
 
mov       rcx,9E0B7497D226
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C34000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322CF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E3D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,2ADA19D0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M04_L03
 
test      r8b,18
 
jne       short M04_L01
 
test      r8b,4
 
je        short M04_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M04_L00
  
ret
 
M04_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M04_L00
 
M04_L02
  
test      r8,r8
 
je        short M04_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M04_L06
 
jmp       short M04_L00
 
M04_L03
  
cmp       r8,40
 
ja        short M04_L07
 
M04_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M04_L11
 
M04_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M04_L00
 
M04_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M04_L00
 
M04_L07
  
cmp       r8,800
 
ja        short M04_L10
 
mov       r9,r8
 
shr       r9,6
 
M04_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M04_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M04_L04
 
jmp       short M04_L05
 
M04_L09
  
cmp       rcx,rdx
 
je        near ptr M04_L00
 
M04_L10
  
jmp       qword ptr [7FFD31E35B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M04_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M04_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M05_L03
 
cmp       r8d,esi
 
jl        near ptr M05_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M05_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M05_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M05_L00
  
cmp       ebp,r10d
 
ja        near ptr M05_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M05_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFD3201CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M05_L07
 
M05_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M05_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C34000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFD322CF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E3D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L04
  
test      eax,eax
 
jne       short M05_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M05_L00
 
M05_L05
  
call      qword ptr [7FFD31F7E9D0]
 
int       3
 
M05_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M05_L02
 
M05_L07
  
call      qword ptr [7FFD31F7E9E8]
 
int       3
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ArrayBytesToStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
mov       edx,[rdx+8]
 
add       edx,edx
 
mov       rcx,rsi
 
call      qword ptr [7FFD3204C150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       edi,edi
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
mov       rcx,[rbx+280]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
lea       rcx,[rcx+r8+10]
 
mov       r8,20DBE000428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,24E4FCE76A8
 
call      qword ptr [7FFD31F84810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L04
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
M00_L01
  
mov       [rsi+18],ebp
 
M00_L02
  
inc       edi
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,edi
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFD3203EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbp,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbp+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       r8d,r8d
 
mov       [rbp+8],r8
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L04
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L01
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFD3204CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M00_L02
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFD31D07738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFD31C64000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFD327FDA28]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFD31C64000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322FF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E6D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFD31C64000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322FF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E6D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,0B0FA4C1BC720
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFD31F84228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,0B0FA4C1BC720
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFD31F5FD20]
 
mov       rcx,0B0FA4C1BC720
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFD31F2F8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFD31F2F360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFD327F7AC8]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,20DBE000298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFD3278DD28]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFD327878B8]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFD327CEC70]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFD3278DE30]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFD31E6C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,20DBE005D00
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFD320C75C8]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,0B0FA4C1BC720
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFD31F5FE40]
 
mov       rcx,0B0FA4C1BC720
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C64000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322FF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E6D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,24E4FCD0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M04_L03
 
test      r8b,18
 
jne       short M04_L01
 
test      r8b,4
 
je        short M04_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M04_L00
  
ret
 
M04_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M04_L00
 
M04_L02
  
test      r8,r8
 
je        short M04_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M04_L06
 
jmp       short M04_L00
 
M04_L03
  
cmp       r8,40
 
ja        short M04_L07
 
M04_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M04_L11
 
M04_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M04_L00
 
M04_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M04_L00
 
M04_L07
  
cmp       r8,800
 
ja        short M04_L10
 
mov       r9,r8
 
shr       r9,6
 
M04_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M04_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M04_L04
 
jmp       short M04_L05
 
M04_L09
  
cmp       rcx,rdx
 
je        near ptr M04_L00
 
M04_L10
  
jmp       qword ptr [7FFD31E65B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M04_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M04_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M05_L03
 
cmp       r8d,esi
 
jl        near ptr M05_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M05_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M05_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M05_L00
  
cmp       ebp,r10d
 
ja        near ptr M05_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M05_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFD3204CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M05_L07
 
M05_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M05_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C64000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFD322FF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E6D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L04
  
test      eax,eax
 
jne       short M05_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M05_L00
 
M05_L05
  
call      qword ptr [7FFD31FAE9D0]
 
int       3
 
M05_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M05_L02
 
M05_L07
  
call      qword ptr [7FFD31FAE9E8]
 
int       3
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ReadOnlySpanBytesToStringComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
test      rdx,rdx
 
je        near ptr M00_L06
 
lea       rdi,[rdx+10]
 
mov       ebp,[rdx+8]
 
lea       edx,[rbp+rbp]
 
mov       rcx,rsi
 
call      qword ptr [7FFD31F5D050]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       r14d,r14d
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
cmp       r14d,ebp
 
jae       near ptr M00_L07
 
mov       ecx,r14d
 
add       rcx,rdi
 
mov       r8,247D5800428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,288636E7688
 
call      qword ptr [7FFD31F14E10]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        near ptr M00_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L04
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M00_L01
  
mov       [rsi+18],r15d
 
M00_L02
  
inc       r14d
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,r14d
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFD31F796D0]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L04
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L01
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFD31F5D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M00_L02
 
M00_L06
  
call      qword ptr [7FFD322B4CF0]
 
mov       ecx,0F
 
mov       rdx,7FFD3221D7C0
 
call      CORINFO_HELP_STRCNS
 
mov       rbx,rax
 
mov       ecx,1AC2
 
mov       rdx,7FFD320BB908
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FFD31D96B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       ecx,1
 
mov       rdx,7FFD3221D7C0
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FFD31D96B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       rcx,offset MT_System.ArgumentNullException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
call      qword ptr [7FFD322B4AE0]
 
mov       r8,rax
 
mov       rdx,rbx
 
mov       rcx,rsi
 
call      qword ptr [7FFD31F16718]
 
mov       rcx,rsi
 
call      CORINFO_HELP_THROW
 
int       3
 
M00_L07
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFD31CE7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFD31C44000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFD327ECED0]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFD31C44000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322EF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E4D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFD31C44000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322EF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E4D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,82259EA88626
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFD31F14828]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,82259EA88626
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFD31F14390]
 
mov       rcx,82259EA88626
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFD31FFE8C8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFD31FFE370]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFD327E6B38]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,247D5800298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFD3277C720]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFD32776508]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFD327BD710]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFD3277C828]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFD31E4C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,247D5801DE8
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFD320B7320]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,82259EA88626
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFD31F144B0]
 
mov       rcx,82259EA88626
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C44000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322EF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E4D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,288636D0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M04_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M04_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M04_L02
 
test      r8b,18
 
jne       short M04_L01
 
test      r8b,4
 
je        short M04_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M04_L00
  
ret
 
M04_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M04_L00
 
M04_L02
  
cmp       r8,40
 
ja        short M04_L06
 
M04_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M04_L10
 
M04_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M04_L00
 
M04_L05
  
test      r8,r8
 
je        short M04_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M04_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M04_L00
 
M04_L06
  
cmp       r8,800
 
ja        short M04_L09
 
mov       r9,r8
 
shr       r9,6
 
M04_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M04_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M04_L03
 
jmp       short M04_L04
 
M04_L08
  
cmp       rcx,rdx
 
je        near ptr M04_L00
 
M04_L09
  
jmp       qword ptr [7FFD31E45B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M04_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M04_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M05_L03
 
cmp       r8d,esi
 
jl        near ptr M05_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M05_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M05_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M05_L00
  
cmp       ebp,r10d
 
ja        near ptr M05_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M05_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFD31F5DA58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M05_L07
 
M05_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M05_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C44000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFD322EF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E4D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L04
  
test      eax,eax
 
jne       short M05_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M05_L00
 
M05_L05
  
call      qword ptr [7FFD320957E8]
 
int       3
 
M05_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M05_L02
 
M05_L07
  
call      qword ptr [7FFD32095800]
 
int       3
 
System.String.Concat(System.String, System.String)
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
test      rsi,rsi
 
je        near ptr M06_L02
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        short M06_L02
 
test      rbx,rbx
 
je        short M06_L00
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        short M06_L00
 
mov       r14d,edi
 
lea       ecx,[r14+rbp]
 
test      ecx,ecx
 
jl        short M06_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r15,rax
 
cmp       [r15],r15b
 
lea       rcx,[r15+0C]
 
lea       rdx,[rsi+0C]
 
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
movsxd    r8,r14d
 
lea       rcx,[r15+r8*2+0C]
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r15
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M06_L00
  
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M06_L01
  
call      qword ptr [7FFD32095D58]
 
int       3
 
M06_L02
  
test      rbx,rbx
 
je        short M06_L03
 
mov       ebp,[rbx+8]
 
xor       eax,eax
 
test      ebp,ebp
 
sete      al
 
test      eax,eax
 
je        short M06_L04
 
M06_L03
  
mov       rax,288636D0008
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M06_L04
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ReadOnlySpanBytesToStringComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
test      rdx,rdx
 
je        near ptr M00_L06
 
lea       rdi,[rdx+10]
 
mov       ebp,[rdx+8]
 
lea       edx,[rbp+rbp]
 
mov       rcx,rsi
 
call      qword ptr [7FFD3201C150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       r14d,r14d
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
cmp       r14d,ebp
 
jae       near ptr M00_L07
 
mov       ecx,r14d
 
add       rcx,rdi
 
mov       r8,1A31D800428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,1E3AF827688
 
call      qword ptr [7FFD31F54810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        near ptr M00_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L04
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M00_L01
  
mov       [rsi+18],r15d
 
M00_L02
  
inc       r14d
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,r14d
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFD3200EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L04
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L01
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFD3201CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M00_L02
 
M00_L06
  
call      qword ptr [7FFD32294CF0]
 
mov       ecx,0F
 
mov       rdx,7FFD321FD7C0
 
call      CORINFO_HELP_STRCNS
 
mov       rbx,rax
 
mov       ecx,1AC2
 
mov       rdx,7FFD3209BBB0
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FFD31D86B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       ecx,1
 
mov       rdx,7FFD321FD7C0
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FFD31D86B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       rcx,offset MT_System.ArgumentNullException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
call      qword ptr [7FFD32294AE0]
 
mov       r8,rax
 
mov       rdx,rbx
 
mov       rcx,rsi
 
call      qword ptr [7FFD31FA6670]
 
mov       rcx,rsi
 
call      CORINFO_HELP_THROW
 
int       3
 
M00_L07
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFD31CD7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFD31C34000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFD327CCED0]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFD31C34000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322CF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E3D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFD31C34000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322CF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E3D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,0B7BA7953489A
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFD31F54228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,0B7BA7953489A
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFD31F2FD20]
 
mov       rcx,0B7BA7953489A
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFD31EFF8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFD31EFF360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFD327C6B38]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,1A31D800298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFD3275C720]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFD32756508]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFD3279D710]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFD3275C828]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFD31E3C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,1A31D805D00
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFD320975C8]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,0B7BA7953489A
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFD31F2FE40]
 
mov       rcx,0B7BA7953489A
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C34000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322CF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E3D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,1E3AF810008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M04_L03
 
test      r8b,18
 
jne       short M04_L01
 
test      r8b,4
 
je        short M04_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M04_L00
  
ret
 
M04_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M04_L00
 
M04_L02
  
test      r8,r8
 
je        short M04_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M04_L06
 
jmp       short M04_L00
 
M04_L03
  
cmp       r8,40
 
ja        short M04_L07
 
M04_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M04_L11
 
M04_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M04_L00
 
M04_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M04_L00
 
M04_L07
  
cmp       r8,800
 
ja        short M04_L10
 
mov       r9,r8
 
shr       r9,6
 
M04_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M04_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M04_L04
 
jmp       short M04_L05
 
M04_L09
  
cmp       rcx,rdx
 
je        near ptr M04_L00
 
M04_L10
  
jmp       qword ptr [7FFD31E35B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M04_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M04_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M05_L03
 
cmp       r8d,esi
 
jl        near ptr M05_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M05_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M05_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M05_L00
  
cmp       ebp,r10d
 
ja        near ptr M05_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M05_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFD3201CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M05_L07
 
M05_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M05_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C34000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFD322CF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E3D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L04
  
test      eax,eax
 
jne       short M05_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M05_L00
 
M05_L05
  
call      qword ptr [7FFD31F7E9D0]
 
int       3
 
M05_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M05_L02
 
M05_L07
  
call      qword ptr [7FFD31F7E9E8]
 
int       3
 
System.String.Concat(System.String, System.String)
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
test      rsi,rsi
 
je        near ptr M06_L02
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        short M06_L02
 
test      rbx,rbx
 
je        short M06_L00
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        short M06_L00
 
mov       r14d,edi
 
lea       ecx,[r14+rbp]
 
test      ecx,ecx
 
jl        short M06_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r15,rax
 
cmp       [r15],r15b
 
lea       rcx,[r15+0C]
 
lea       rdx,[rsi+0C]
 
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
movsxd    r8,r14d
 
lea       rcx,[r15+r8*2+0C]
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r15
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M06_L00
  
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M06_L01
  
call      qword ptr [7FFD31F7EF40]
 
int       3
 
M06_L02
  
test      rbx,rbx
 
je        short M06_L03
 
mov       ebp,[rbx+8]
 
xor       eax,eax
 
test      ebp,ebp
 
sete      al
 
test      eax,eax
 
je        short M06_L04
 
M06_L03
  
mov       rax,1E3AF810008
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M06_L04
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ReadOnlySpanBytesToStringComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
test      rdx,rdx
 
je        near ptr M00_L04
 
lea       rdi,[rdx+10]
 
mov       ebp,[rdx+8]
 
lea       edx,[rbp+rbp]
 
mov       rcx,rsi
 
call      qword ptr [7FFD3202C150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       r14d,r14d
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
cmp       r14d,ebp
 
jae       near ptr M00_L07
 
mov       ecx,r14d
 
add       rcx,rdi
 
mov       r8,19EA0400428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,1DF32397688
 
call      qword ptr [7FFD31F64810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        near ptr M00_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        near ptr M00_L05
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
M00_L01
  
mov       [rsi+18],r15d
 
M00_L02
  
inc       r14d
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,r14d
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFD3201EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       r15,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[r15+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [r15+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L04
  
call      qword ptr [7FFD322A4CF0]
 
mov       ecx,0F
 
mov       rdx,7FFD3220D7C0
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
mov       ecx,1AC2
 
mov       rdx,7FFD320ABBB0
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rsi
 
call      qword ptr [7FFD31D96B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       ecx,1
 
mov       rdx,7FFD3220D7C0
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FFD31D96B08]; System.String.Concat(System.String, System.String)
 
mov       rdi,rax
 
mov       rcx,offset MT_System.ArgumentNullException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
call      qword ptr [7FFD322A4AE0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbp
 
call      qword ptr [7FFD31FB6670]
 
mov       rcx,rbp
 
call      CORINFO_HELP_THROW
 
M00_L05
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M00_L01
 
M00_L06
  
mov       rcx,rsi
 
call      qword ptr [7FFD3202CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M00_L02
 
M00_L07
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFD31CE7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFD31C44000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFD327DCD50]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFD31C44000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322DF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E4D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFD31C44000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322DF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E4D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,0AFF51849E516
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFD31F64228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,0AFF51849E516
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFD31F3FD20]
 
mov       rcx,0AFF51849E516
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFD31F0F8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFD31F0F360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFD327D69B8]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,19EA0400298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFD3276C720]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFD32766508]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFD327AD3E0]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFD3276C828]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFD31E4C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,19EA0405D00
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFD320A75C8]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,0AFF51849E516
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFD31F3FE40]
 
mov       rcx,0AFF51849E516
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C44000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322DF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E4D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,1DF32380008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.String.Concat(System.String, System.String)
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
test      rsi,rsi
 
je        near ptr M04_L02
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        short M04_L02
 
test      rbx,rbx
 
je        short M04_L00
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        short M04_L00
 
mov       r14d,edi
 
lea       ecx,[r14+rbp]
 
test      ecx,ecx
 
jl        short M04_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r15,rax
 
cmp       [r15],r15b
 
lea       rcx,[r15+0C]
 
lea       rdx,[rsi+0C]
 
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
movsxd    r8,r14d
 
lea       rcx,[r15+r8*2+0C]
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r15
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L00
  
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L01
  
call      qword ptr [7FFD31F8EF40]
 
int       3
 
M04_L02
  
test      rbx,rbx
 
je        short M04_L03
 
mov       ebp,[rbx+8]
 
xor       eax,eax
 
test      ebp,ebp
 
sete      al
 
test      eax,eax
 
je        short M04_L04
 
M04_L03
  
mov       rax,1DF32380008
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L04
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M05_L03
 
test      r8b,18
 
jne       short M05_L01
 
test      r8b,4
 
je        short M05_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M05_L00
  
ret
 
M05_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M05_L00
 
M05_L02
  
test      r8,r8
 
je        short M05_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M05_L06
 
jmp       short M05_L00
 
M05_L03
  
cmp       r8,40
 
ja        short M05_L07
 
M05_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M05_L11
 
M05_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M05_L00
 
M05_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M05_L00
 
M05_L07
  
cmp       r8,800
 
ja        short M05_L10
 
mov       r9,r8
 
shr       r9,6
 
M05_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M05_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M05_L04
 
jmp       short M05_L05
 
M05_L09
  
cmp       rcx,rdx
 
je        near ptr M05_L00
 
M05_L10
  
jmp       qword ptr [7FFD31E45B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M05_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M05_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M06_L03
 
cmp       r8d,esi
 
jl        near ptr M06_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M06_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M06_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M06_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M06_L00
  
cmp       ebp,r10d
 
ja        near ptr M06_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M06_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFD3202CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M06_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M06_L07
 
M06_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M06_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C44000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFD322DF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E4D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M06_L04
  
test      eax,eax
 
jne       short M06_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M06_L00
 
M06_L05
  
call      qword ptr [7FFD31F8E9D0]
 
int       3
 
M06_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M06_L02
 
M06_L07
  
call      qword ptr [7FFD31F8E9E8]
 
int       3
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ReadOnlySpanBytesToStringComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
test      rdx,rdx
 
je        near ptr M00_L06
 
lea       rdi,[rdx+10]
 
mov       ebp,[rdx+8]
 
lea       edx,[rbp+rbp]
 
mov       rcx,rsi
 
call      qword ptr [7FFD3202C150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       r14d,r14d
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
cmp       r14d,ebp
 
jae       near ptr M00_L07
 
mov       ecx,r14d
 
add       rcx,rdi
 
mov       r8,1AD56800428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,1EDE86D7688
 
call      qword ptr [7FFD31F64810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        near ptr M00_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L04
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M00_L01
  
mov       [rsi+18],r15d
 
M00_L02
  
inc       r14d
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,r14d
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFD3201EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L04
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L01
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFD3202CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M00_L02
 
M00_L06
  
call      qword ptr [7FFD322A4CF0]
 
mov       ecx,0F
 
mov       rdx,7FFD3220D7C0
 
call      CORINFO_HELP_STRCNS
 
mov       rbx,rax
 
mov       ecx,1AC2
 
mov       rdx,7FFD320ABBB0
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FFD31D96B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       ecx,1
 
mov       rdx,7FFD3220D7C0
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FFD31D96B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       rcx,offset MT_System.ArgumentNullException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
call      qword ptr [7FFD322A4AE0]
 
mov       r8,rax
 
mov       rdx,rbx
 
mov       rcx,rsi
 
call      qword ptr [7FFD31FB6670]
 
mov       rcx,rsi
 
call      CORINFO_HELP_THROW
 
int       3
 
M00_L07
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFD31CE7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFD31C44000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFD327DCD20]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFD31C44000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322DF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E4D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFD31C44000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322DF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E4D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,0EDC38753996
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFD31F64228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,0EDC38753996
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFD31F3FD20]
 
mov       rcx,0EDC38753996
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFD31F0F8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFD31F0F360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFD327D6598]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,1AD56800298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFD3276C720]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFD32766508]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFD327AD3E0]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFD3276C828]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFD31E4C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,1AD56805D00
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFD320A75C8]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,0EDC38753996
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFD31F3FE40]
 
mov       rcx,0EDC38753996
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C44000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322DF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E4D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,1EDE86C0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M04_L03
 
test      r8b,18
 
jne       short M04_L01
 
test      r8b,4
 
je        short M04_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M04_L00
  
ret
 
M04_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M04_L00
 
M04_L02
  
test      r8,r8
 
je        short M04_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M04_L06
 
jmp       short M04_L00
 
M04_L03
  
cmp       r8,40
 
ja        short M04_L07
 
M04_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M04_L11
 
M04_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M04_L00
 
M04_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M04_L00
 
M04_L07
  
cmp       r8,800
 
ja        short M04_L10
 
mov       r9,r8
 
shr       r9,6
 
M04_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M04_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M04_L04
 
jmp       short M04_L05
 
M04_L09
  
cmp       rcx,rdx
 
je        near ptr M04_L00
 
M04_L10
  
jmp       qword ptr [7FFD31E45B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M04_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M04_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M05_L03
 
cmp       r8d,esi
 
jl        near ptr M05_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M05_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M05_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M05_L00
  
cmp       ebp,r10d
 
ja        near ptr M05_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M05_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFD3202CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M05_L07
 
M05_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M05_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C44000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFD322DF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E4D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L04
  
test      eax,eax
 
jne       short M05_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M05_L00
 
M05_L05
  
call      qword ptr [7FFD31F8E9D0]
 
int       3
 
M05_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M05_L02
 
M05_L07
  
call      qword ptr [7FFD31F8E9E8]
 
int       3
 
System.String.Concat(System.String, System.String)
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
test      rsi,rsi
 
je        near ptr M06_L02
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        short M06_L02
 
test      rbx,rbx
 
je        short M06_L00
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        short M06_L00
 
mov       r14d,edi
 
lea       ecx,[r14+rbp]
 
test      ecx,ecx
 
jl        short M06_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r15,rax
 
cmp       [r15],r15b
 
lea       rcx,[r15+0C]
 
lea       rdx,[rsi+0C]
 
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
movsxd    r8,r14d
 
lea       rcx,[r15+r8*2+0C]
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r15
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M06_L00
  
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M06_L01
  
call      qword ptr [7FFD31F8EF40]
 
int       3
 
M06_L02
  
test      rbx,rbx
 
je        short M06_L03
 
mov       ebp,[rbx+8]
 
xor       eax,eax
 
test      ebp,ebp
 
sete      al
 
test      eax,eax
 
je        short M06_L04
 
M06_L03
  
mov       rax,1EDE86C0008
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M06_L04
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ReadOnlySpanBytesToStringComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
test      rdx,rdx
 
je        near ptr M00_L06
 
lea       rdi,[rdx+10]
 
mov       ebp,[rdx+8]
 
lea       edx,[rbp+rbp]
 
mov       rcx,rsi
 
call      qword ptr [7FFD3203C150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       r14d,r14d
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
cmp       r14d,ebp
 
jae       near ptr M00_L07
 
mov       ecx,r14d
 
add       rcx,rdi
 
mov       r8,1354A800428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,175DC8076A8
 
call      qword ptr [7FFD31F74810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        near ptr M00_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L04
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M00_L01
  
mov       [rsi+18],r15d
 
M00_L02
  
inc       r14d
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,r14d
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFD3202EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L04
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L01
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFD3203CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M00_L02
 
M00_L06
  
call      qword ptr [7FFD322B4CF0]
 
mov       ecx,0F
 
mov       rdx,7FFD3221D7C0
 
call      CORINFO_HELP_STRCNS
 
mov       rbx,rax
 
mov       ecx,1AC2
 
mov       rdx,7FFD320BBBB0
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FFD31DA6B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       ecx,1
 
mov       rdx,7FFD3221D7C0
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FFD31DA6B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       rcx,offset MT_System.ArgumentNullException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
call      qword ptr [7FFD322B4AE0]
 
mov       r8,rax
 
mov       rdx,rbx
 
mov       rcx,rsi
 
call      qword ptr [7FFD31FC6670]
 
mov       rcx,rsi
 
call      CORINFO_HELP_THROW
 
int       3
 
M00_L07
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFD31CF7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFD31C54000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFD327EE2C8]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFD31C54000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322EF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E5D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFD31C54000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322EF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E5D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,0C744F6DBDA9
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFD31F74228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,0C744F6DBDA9
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFD31F4FD20]
 
mov       rcx,0C744F6DBDA9
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFD31F1F8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFD31F1F360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFD327E7AF8]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,1354A800298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFD3277DD28]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFD327778B8]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFD327BE940]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFD3277DE30]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFD31E5C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,1354A805D00
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFD320B75C8]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,0C744F6DBDA9
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFD31F4FE40]
 
mov       rcx,0C744F6DBDA9
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C54000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322EF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E5D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,175DC7F0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M04_L03
 
test      r8b,18
 
jne       short M04_L01
 
test      r8b,4
 
je        short M04_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M04_L00
  
ret
 
M04_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M04_L00
 
M04_L02
  
test      r8,r8
 
je        short M04_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M04_L06
 
jmp       short M04_L00
 
M04_L03
  
cmp       r8,40
 
ja        short M04_L07
 
M04_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M04_L11
 
M04_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M04_L00
 
M04_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M04_L00
 
M04_L07
  
cmp       r8,800
 
ja        short M04_L10
 
mov       r9,r8
 
shr       r9,6
 
M04_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M04_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M04_L04
 
jmp       short M04_L05
 
M04_L09
  
cmp       rcx,rdx
 
je        near ptr M04_L00
 
M04_L10
  
jmp       qword ptr [7FFD31E55B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M04_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M04_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M05_L03
 
cmp       r8d,esi
 
jl        near ptr M05_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M05_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M05_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M05_L00
  
cmp       ebp,r10d
 
ja        near ptr M05_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M05_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFD3203CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M05_L07
 
M05_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M05_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C54000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFD322EF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E5D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L04
  
test      eax,eax
 
jne       short M05_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M05_L00
 
M05_L05
  
call      qword ptr [7FFD31F9E9D0]
 
int       3
 
M05_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M05_L02
 
M05_L07
  
call      qword ptr [7FFD31F9E9E8]
 
int       3
 
System.String.Concat(System.String, System.String)
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
test      rsi,rsi
 
je        near ptr M06_L02
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        short M06_L02
 
test      rbx,rbx
 
je        short M06_L00
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        short M06_L00
 
mov       r14d,edi
 
lea       ecx,[r14+rbp]
 
test      ecx,ecx
 
jl        short M06_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r15,rax
 
cmp       [r15],r15b
 
lea       rcx,[r15+0C]
 
lea       rdx,[rsi+0C]
 
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
movsxd    r8,r14d
 
lea       rcx,[r15+r8*2+0C]
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r15
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M06_L00
  
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M06_L01
  
call      qword ptr [7FFD31F9EF40]
 
int       3
 
M06_L02
  
test      rbx,rbx
 
je        short M06_L03
 
mov       ebp,[rbx+8]
 
xor       eax,eax
 
test      ebp,ebp
 
sete      al
 
test      eax,eax
 
je        short M06_L04
 
M06_L03
  
mov       rax,175DC7F0008
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M06_L04
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ReadOnlySpanBytesToStringComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
test      rdx,rdx
 
je        near ptr M00_L04
 
lea       rdi,[rdx+10]
 
mov       ebp,[rdx+8]
 
lea       edx,[rbp+rbp]
 
mov       rcx,rsi
 
call      qword ptr [7FFD3202C150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       r14d,r14d
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
cmp       r14d,ebp
 
jae       near ptr M00_L07
 
mov       ecx,r14d
 
add       rcx,rdi
 
mov       r8,2A0A7400428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,2E1393576A8
 
call      qword ptr [7FFD31F64810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        near ptr M00_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        near ptr M00_L05
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
M00_L01
  
mov       [rsi+18],r15d
 
M00_L02
  
inc       r14d
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,r14d
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFD3201EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       r15,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[r15+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [r15+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L04
  
call      qword ptr [7FFD322A4CF0]
 
mov       ecx,0F
 
mov       rdx,7FFD3220D7C0
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
mov       ecx,1AC2
 
mov       rdx,7FFD320ABBB0
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rsi
 
call      qword ptr [7FFD31D96B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       ecx,1
 
mov       rdx,7FFD3220D7C0
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FFD31D96B08]; System.String.Concat(System.String, System.String)
 
mov       rdi,rax
 
mov       rcx,offset MT_System.ArgumentNullException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
call      qword ptr [7FFD322A4AE0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbp
 
call      qword ptr [7FFD31FB6670]
 
mov       rcx,rbp
 
call      CORINFO_HELP_THROW
 
M00_L05
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M00_L01
 
M00_L06
  
mov       rcx,rsi
 
call      qword ptr [7FFD3202CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M00_L02
 
M00_L07
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFD31CE7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFD31C44000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFD327DE2C8]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFD31C44000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322DF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E4D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFD31C44000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322DF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E4D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,2888B6F658E1
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFD31F64228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,2888B6F658E1
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFD31F3FD20]
 
mov       rcx,2888B6F658E1
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFD31F0F8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFD31F0F360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFD327D7AF8]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,2A0A7400298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFD3276DD28]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFD327678B8]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFD327AE940]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFD3276DE30]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFD31E4C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,2A0A7405D00
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFD320A75C8]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,2888B6F658E1
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFD31F3FE40]
 
mov       rcx,2888B6F658E1
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C44000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322DF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E4D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,2E139340008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.String.Concat(System.String, System.String)
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
test      rsi,rsi
 
je        near ptr M04_L02
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        short M04_L02
 
test      rbx,rbx
 
je        short M04_L00
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        short M04_L00
 
mov       r14d,edi
 
lea       ecx,[r14+rbp]
 
test      ecx,ecx
 
jl        short M04_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r15,rax
 
cmp       [r15],r15b
 
lea       rcx,[r15+0C]
 
lea       rdx,[rsi+0C]
 
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
movsxd    r8,r14d
 
lea       rcx,[r15+r8*2+0C]
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r15
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L00
  
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L01
  
call      qword ptr [7FFD31F8EF40]
 
int       3
 
M04_L02
  
test      rbx,rbx
 
je        short M04_L03
 
mov       ebp,[rbx+8]
 
xor       eax,eax
 
test      ebp,ebp
 
sete      al
 
test      eax,eax
 
je        short M04_L04
 
M04_L03
  
mov       rax,2E139340008
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L04
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M05_L03
 
test      r8b,18
 
jne       short M05_L01
 
test      r8b,4
 
je        short M05_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M05_L00
  
ret
 
M05_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M05_L00
 
M05_L02
  
test      r8,r8
 
je        short M05_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M05_L06
 
jmp       short M05_L00
 
M05_L03
  
cmp       r8,40
 
ja        short M05_L07
 
M05_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M05_L11
 
M05_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M05_L00
 
M05_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M05_L00
 
M05_L07
  
cmp       r8,800
 
ja        short M05_L10
 
mov       r9,r8
 
shr       r9,6
 
M05_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M05_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M05_L04
 
jmp       short M05_L05
 
M05_L09
  
cmp       rcx,rdx
 
je        near ptr M05_L00
 
M05_L10
  
jmp       qword ptr [7FFD31E45B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M05_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M05_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M06_L03
 
cmp       r8d,esi
 
jl        near ptr M06_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M06_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M06_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M06_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M06_L00
  
cmp       ebp,r10d
 
ja        near ptr M06_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M06_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFD3202CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M06_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M06_L07
 
M06_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M06_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C44000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFD322DF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E4D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M06_L04
  
test      eax,eax
 
jne       short M06_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M06_L00
 
M06_L05
  
call      qword ptr [7FFD31F8E9D0]
 
int       3
 
M06_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M06_L02
 
M06_L07
  
call      qword ptr [7FFD31F8E9E8]
 
int       3
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ReadOnlySpanBytesToStringComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
test      rdx,rdx
 
je        near ptr M00_L04
 
lea       rdi,[rdx+10]
 
mov       ebp,[rdx+8]
 
lea       edx,[rbp+rbp]
 
mov       rcx,rsi
 
call      qword ptr [7FFD3201C150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       r14d,r14d
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
cmp       r14d,ebp
 
jae       near ptr M00_L07
 
mov       ecx,r14d
 
add       rcx,rdi
 
mov       r8,1DE1D800428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,21EAB5176A8
 
call      qword ptr [7FFD31F54810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        near ptr M00_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        near ptr M00_L05
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
M00_L01
  
mov       [rsi+18],r15d
 
M00_L02
  
inc       r14d
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,r14d
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFD3200EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       r15,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[r15+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [r15+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L04
  
call      qword ptr [7FFD32294CF0]
 
mov       ecx,0F
 
mov       rdx,7FFD321FD7C0
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
mov       ecx,1AC2
 
mov       rdx,7FFD3209BC68
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rsi
 
call      qword ptr [7FFD31D86B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       ecx,1
 
mov       rdx,7FFD321FD7C0
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FFD31D86B08]; System.String.Concat(System.String, System.String)
 
mov       rdi,rax
 
mov       rcx,offset MT_System.ArgumentNullException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
call      qword ptr [7FFD32294AE0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbp
 
call      qword ptr [7FFD31FA6670]
 
mov       rcx,rbp
 
call      CORINFO_HELP_THROW
 
M00_L05
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M00_L01
 
M00_L06
  
mov       rcx,rsi
 
call      qword ptr [7FFD3201CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M00_L02
 
M00_L07
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFD31CD7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFD31C34000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFD327CE280]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFD31C34000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322CF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E3D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFD31C34000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322CF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E3D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,9B232010B475
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFD31F54228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,9B232010B475
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFD31F2FD20]
 
mov       rcx,9B232010B475
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFD31EFF8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFD31EFF360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFD327C7E28]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,1DE1D800298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFD3275DD28]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFD327578B8]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFD3279E940]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFD3275DE30]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFD31E3C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,1DE19803CF8
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFD32091FB8]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,9B232010B475
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFD31F2FE40]
 
mov       rcx,9B232010B475
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C34000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322CF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E3D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,21EAB500008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.String.Concat(System.String, System.String)
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
test      rsi,rsi
 
je        near ptr M04_L02
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        short M04_L02
 
test      rbx,rbx
 
je        short M04_L00
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        short M04_L00
 
mov       r14d,edi
 
lea       ecx,[r14+rbp]
 
test      ecx,ecx
 
jl        short M04_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r15,rax
 
cmp       [r15],r15b
 
lea       rcx,[r15+0C]
 
lea       rdx,[rsi+0C]
 
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
movsxd    r8,r14d
 
lea       rcx,[r15+r8*2+0C]
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r15
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L00
  
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L01
  
call      qword ptr [7FFD31F7EF40]
 
int       3
 
M04_L02
  
test      rbx,rbx
 
je        short M04_L03
 
mov       ebp,[rbx+8]
 
xor       eax,eax
 
test      ebp,ebp
 
sete      al
 
test      eax,eax
 
je        short M04_L04
 
M04_L03
  
mov       rax,21EAB500008
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L04
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M05_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M05_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M05_L02
 
test      r8b,18
 
je        short M05_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M05_L00
  
ret
 
M05_L01
  
test      r8b,4
 
je        short M05_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M05_L00
 
M05_L02
  
cmp       r8,40
 
ja        short M05_L06
 
M05_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M05_L10
 
M05_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M05_L00
 
M05_L05
  
test      r8,r8
 
je        short M05_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M05_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M05_L00
 
M05_L06
  
cmp       r8,800
 
ja        short M05_L09
 
mov       r9,r8
 
shr       r9,6
 
M05_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M05_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M05_L03
 
jmp       short M05_L04
 
M05_L08
  
cmp       rcx,rdx
 
je        near ptr M05_L00
 
M05_L09
  
jmp       qword ptr [7FFD31E35B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M05_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M05_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M06_L03
 
cmp       r8d,esi
 
jl        near ptr M06_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M06_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M06_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M06_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M06_L00
  
cmp       ebp,r10d
 
ja        near ptr M06_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M06_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFD3201CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M06_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M06_L07
 
M06_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M06_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C34000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFD322CF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E3D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M06_L04
  
test      eax,eax
 
jne       short M06_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M06_L00
 
M06_L05
  
call      qword ptr [7FFD31F7E9D0]
 
int       3
 
M06_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M06_L02
 
M06_L07
  
call      qword ptr [7FFD31F7E9E8]
 
int       3
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ReadOnlySpanBytesToStringComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
test      rdx,rdx
 
je        near ptr M00_L04
 
lea       rdi,[rdx+10]
 
mov       ebp,[rdx+8]
 
lea       edx,[rbp+rbp]
 
mov       rcx,rsi
 
call      qword ptr [7FFD3201C150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       r14d,r14d
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
cmp       r14d,ebp
 
jae       near ptr M00_L07
 
mov       ecx,r14d
 
add       rcx,rdi
 
mov       r8,201F3000428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,24284E076A8
 
call      qword ptr [7FFD31F54810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        near ptr M00_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        near ptr M00_L05
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
M00_L01
  
mov       [rsi+18],r15d
 
M00_L02
  
inc       r14d
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,r14d
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFD3200EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       r15,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[r15+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [r15+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L04
  
call      qword ptr [7FFD32294CF0]
 
mov       ecx,0F
 
mov       rdx,7FFD321FD7C0
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
mov       ecx,1AC2
 
mov       rdx,7FFD3209BBB0
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rsi
 
call      qword ptr [7FFD31D86B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       ecx,1
 
mov       rdx,7FFD321FD7C0
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FFD31D86B08]; System.String.Concat(System.String, System.String)
 
mov       rdi,rax
 
mov       rcx,offset MT_System.ArgumentNullException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
call      qword ptr [7FFD32294AE0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbp
 
call      qword ptr [7FFD31FA6670]
 
mov       rcx,rbp
 
call      CORINFO_HELP_THROW
 
M00_L05
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M00_L01
 
M00_L06
  
mov       rcx,rsi
 
call      qword ptr [7FFD3201CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M00_L02
 
M00_L07
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFD31CD7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFD31C34000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFD327CDF80]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFD31C34000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322CF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E3D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFD31C34000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322CF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E3D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,2A2AC2651390
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFD31F54228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,2A2AC2651390
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFD31F2FD20]
 
mov       rcx,2A2AC2651390
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFD31EFF8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFD31EFF360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFD327CC030]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,201F3000298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFD3275DD28]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFD327578B8]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFD3279EC70]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFD3275DE30]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFD31E3C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,201F3005D00
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFD320975C8]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,2A2AC2651390
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFD31F2FE40]
 
mov       rcx,2A2AC2651390
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C34000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322CF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E3D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,24284DF0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.String.Concat(System.String, System.String)
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
test      rsi,rsi
 
je        near ptr M04_L02
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        short M04_L02
 
test      rbx,rbx
 
je        short M04_L00
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        short M04_L00
 
mov       r14d,edi
 
lea       ecx,[r14+rbp]
 
test      ecx,ecx
 
jl        short M04_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r15,rax
 
cmp       [r15],r15b
 
lea       rcx,[r15+0C]
 
lea       rdx,[rsi+0C]
 
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
movsxd    r8,r14d
 
lea       rcx,[r15+r8*2+0C]
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r15
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L00
  
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L01
  
call      qword ptr [7FFD31F7EF40]
 
int       3
 
M04_L02
  
test      rbx,rbx
 
je        short M04_L03
 
mov       ebp,[rbx+8]
 
xor       eax,eax
 
test      ebp,ebp
 
sete      al
 
test      eax,eax
 
je        short M04_L04
 
M04_L03
  
mov       rax,24284DF0008
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L04
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M05_L03
 
test      r8b,18
 
jne       short M05_L01
 
test      r8b,4
 
je        short M05_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M05_L00
  
ret
 
M05_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M05_L00
 
M05_L02
  
test      r8,r8
 
je        short M05_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M05_L06
 
jmp       short M05_L00
 
M05_L03
  
cmp       r8,40
 
ja        short M05_L07
 
M05_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M05_L11
 
M05_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M05_L00
 
M05_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M05_L00
 
M05_L07
  
cmp       r8,800
 
ja        short M05_L10
 
mov       r9,r8
 
shr       r9,6
 
M05_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M05_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M05_L04
 
jmp       short M05_L05
 
M05_L09
  
cmp       rcx,rdx
 
je        near ptr M05_L00
 
M05_L10
  
jmp       qword ptr [7FFD31E35B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M05_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M05_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M06_L03
 
cmp       r8d,esi
 
jl        near ptr M06_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M06_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M06_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M06_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M06_L00
  
cmp       ebp,r10d
 
ja        near ptr M06_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M06_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFD3201CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M06_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M06_L07
 
M06_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M06_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C34000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFD322CF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E3D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M06_L04
  
test      eax,eax
 
jne       short M06_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M06_L00
 
M06_L05
  
call      qword ptr [7FFD31F7E9D0]
 
int       3
 
M06_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M06_L02
 
M06_L07
  
call      qword ptr [7FFD31F7E9E8]
 
int       3
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpaceComparison()
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,40
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,291E0400428
 
mov       r8,[r8]
 
mov       [rsp+38],rcx
 
lea       rcx,[rsp+38]
 
mov       [rsp+20],rcx
 
mov       dword ptr [rsp+28],1
 
mov       rcx,r8
 
lea       r8,[rsp+20]
 
mov       rdx,2D272487688
 
call      qword ptr [7FFD31DB6C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r15d,[rax+8]
 
test      r15d,r15d
 
je        short M00_L04
 
mov       r8,[rsi+8]
 
mov       r13d,[rsi+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M00_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jle       short M00_L02
 
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
add       r15d,r13d
 
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
mov       r8d,r15d
 
call      qword ptr [7FFD31F7D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFD31F996D0]; System.Text.StringBuilder.ToString()
 
mov       rsi,rax
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        near ptr M00_L24
 
movzx     ecx,word ptr [rsi+0C]
 
cmp       ecx,100
 
jae       short M00_L06
 
mov       rax,7FFD8AAD2E40
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       short M00_L07
 
M00_L06
  
call      qword ptr [7FFD3283C9C0]
 
test      eax,eax
 
jne       short M00_L09
 
M00_L07
  
lea       ebp,[rdi-1]
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L08
 
mov       rax,7FFD8AAD2E40
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       near ptr M00_L24
 
M00_L08
  
call      qword ptr [7FFD3283C9C0]
 
test      eax,eax
 
je        near ptr M00_L24
 
M00_L09
  
xor       r14d,r14d
 
test      edi,edi
 
jle       short M00_L13
 
M00_L10
  
mov       ecx,r14d
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L11
 
mov       rax,7FFD8AAD2E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L13
 
jmp       short M00_L12
 
M00_L11
  
call      qword ptr [7FFD3283C9C0]
 
test      eax,eax
 
je        short M00_L13
 
M00_L12
  
inc       r14d
 
cmp       edi,r14d
 
jg        short M00_L10
 
M00_L13
  
lea       ebp,[rdi-1]
 
cmp       ebp,r14d
 
jl        short M00_L20
 
mov       ecx,ebp
 
or        ecx,r14d
 
jl        short M00_L17
 
cmp       edi,ebp
 
jle       short M00_L17
 
M00_L14
  
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L15
 
mov       rax,7FFD8AAD2E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L16
 
M00_L15
  
call      qword ptr [7FFD3283C9C0]
 
test      eax,eax
 
je        short M00_L20
 
M00_L16
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L14
 
jmp       short M00_L20
 
M00_L17
  
cmp       ebp,edi
 
jae       near ptr M00_L25
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L18
 
mov       rax,7FFD8AAD2E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L19
 
M00_L18
  
call      qword ptr [7FFD3283C9C0]
 
test      eax,eax
 
je        short M00_L20
 
M00_L19
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L17
 
M00_L20
  
sub       ebp,r14d
 
inc       ebp
 
cmp       edi,ebp
 
jne       short M00_L22
 
mov       rdi,rsi
 
M00_L21
  
mov       [rsp+30],rdi
 
mov       rsi,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rsi+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rsi+8],rax
 
add       rsp,40
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M00_L22
  
test      ebp,ebp
 
je        short M00_L23
 
mov       ecx,ebp
 
call      System.String.FastAllocateString(Int32)
 
mov       rdi,rax
 
mov       r8d,ebp
 
cmp       [rdi],dil
 
lea       rcx,[rdi+0C]
 
mov       edx,r14d
 
lea       rdx,[rsi+rdx*2+0C]
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L21
 
M00_L23
  
mov       rdi,2D272470008
 
jmp       short M00_L21
 
M00_L24
  
mov       rdi,rsi
 
jmp       short M00_L21
 
M00_L25
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,8D1550576861
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFD31F7C000]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD31F7C108]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,8D1550576861
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD31F7C240]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFD31C64000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFD31F36790]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFD31E65B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFD31F7DA58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C64000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD3230F6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E6D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFD320B57E8]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFD320B5800]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C64000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD3230F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E6D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,2D272470008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
Extern method
System.String.FastAllocateString(Int32)

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpaceComparison()
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,40
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,26E37800428
 
mov       r8,[r8]
 
mov       [rsp+38],rcx
 
lea       rcx,[rsp+38]
 
mov       [rsp+20],rcx
 
mov       dword ptr [rsp+28],1
 
mov       rcx,r8
 
lea       r8,[rsp+20]
 
mov       rdx,2AEC5707688
 
call      qword ptr [7FFD31DB6C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r15d,[rax+8]
 
test      r15d,r15d
 
je        short M00_L04
 
mov       r8,[rsi+8]
 
mov       r13d,[rsi+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M00_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jle       short M00_L02
 
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
add       r15d,r13d
 
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
mov       r8d,r15d
 
call      qword ptr [7FFD3204CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFD3203EB18]; System.Text.StringBuilder.ToString()
 
mov       rsi,rax
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        near ptr M00_L24
 
movzx     ecx,word ptr [rsi+0C]
 
cmp       ecx,100
 
jae       short M00_L06
 
mov       rax,7FFD8AAD2E40
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       short M00_L07
 
M00_L06
  
call      qword ptr [7FFD3282CD50]
 
test      eax,eax
 
jne       short M00_L09
 
M00_L07
  
lea       ebp,[rdi-1]
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L08
 
mov       rax,7FFD8AAD2E40
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       near ptr M00_L24
 
M00_L08
  
call      qword ptr [7FFD3282CD50]
 
test      eax,eax
 
je        near ptr M00_L24
 
M00_L09
  
xor       r14d,r14d
 
test      edi,edi
 
jle       short M00_L13
 
M00_L10
  
mov       ecx,r14d
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L11
 
mov       rax,7FFD8AAD2E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L13
 
jmp       short M00_L12
 
M00_L11
  
call      qword ptr [7FFD3282CD50]
 
test      eax,eax
 
je        short M00_L13
 
M00_L12
  
inc       r14d
 
cmp       edi,r14d
 
jg        short M00_L10
 
M00_L13
  
lea       ebp,[rdi-1]
 
cmp       ebp,r14d
 
jl        short M00_L20
 
mov       ecx,ebp
 
or        ecx,r14d
 
jl        short M00_L17
 
cmp       edi,ebp
 
jle       short M00_L17
 
M00_L14
  
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L15
 
mov       rax,7FFD8AAD2E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L16
 
M00_L15
  
call      qword ptr [7FFD3282CD50]
 
test      eax,eax
 
je        short M00_L20
 
M00_L16
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L14
 
jmp       short M00_L20
 
M00_L17
  
cmp       ebp,edi
 
jae       near ptr M00_L25
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L18
 
mov       rax,7FFD8AAD2E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L19
 
M00_L18
  
call      qword ptr [7FFD3282CD50]
 
test      eax,eax
 
je        short M00_L20
 
M00_L19
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L17
 
M00_L20
  
sub       ebp,r14d
 
inc       ebp
 
cmp       edi,ebp
 
jne       short M00_L22
 
mov       rdi,rsi
 
M00_L21
  
mov       [rsp+30],rdi
 
mov       rsi,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rsi+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rsi+8],rax
 
add       rsp,40
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M00_L22
  
test      ebp,ebp
 
je        short M00_L23
 
mov       ecx,ebp
 
call      System.String.FastAllocateString(Int32)
 
mov       rdi,rax
 
mov       r8d,ebp
 
cmp       [rdi],dil
 
lea       rcx,[rdi+0C]
 
mov       edx,r14d
 
lea       rdx,[rsi+rdx*2+0C]
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L21
 
M00_L23
  
mov       rdi,2AEC56F0008
 
jmp       short M00_L21
 
M00_L24
  
mov       rdi,rsi
 
jmp       short M00_L21
 
M00_L25
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,3268EA19A406
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFD320470D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD320471E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,3268EA19A406
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD32047318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFD31C64000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFD31FD66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L02
 
test      r8b,18
 
je        short M02_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L00
  
ret
 
M02_L01
  
test      r8b,4
 
je        short M02_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L00
 
M02_L02
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L05
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L00
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L03
 
jmp       short M02_L04
 
M02_L08
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L09
  
jmp       qword ptr [7FFD31E65B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M02_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M02_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFD3204CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C64000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322FF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E6D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFD31FAE9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFD31FAE9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C64000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322FF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E6D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,2AEC56F0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
Extern method
System.String.FastAllocateString(Int32)

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpaceComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,1A23BC00428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,1E2CDAA7688
 
call      qword ptr [7FFD31D96C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFD3202CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFD3201EB18]; System.Text.StringBuilder.ToString()
 
mov       rsi,rax
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        near ptr M00_L24
 
movzx     ecx,word ptr [rsi+0C]
 
cmp       ecx,100
 
jae       short M00_L06
 
mov       rax,7FFD8AAD2E40
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       short M00_L07
 
M00_L06
  
call      qword ptr [7FFD3266E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
jne       short M00_L09
 
M00_L07
  
lea       ebp,[rdi-1]
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L08
 
mov       rax,7FFD8AAD2E40
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       near ptr M00_L24
 
M00_L08
  
call      qword ptr [7FFD3266E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        near ptr M00_L24
 
M00_L09
  
xor       r14d,r14d
 
test      edi,edi
 
jle       short M00_L13
 
M00_L10
  
mov       ecx,r14d
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L11
 
mov       ecx,ecx
 
mov       rax,7FFD8AAD2E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L13
 
jmp       short M00_L12
 
M00_L11
  
call      qword ptr [7FFD3266E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L13
 
M00_L12
  
inc       r14d
 
cmp       edi,r14d
 
jg        short M00_L10
 
M00_L13
  
lea       ebp,[rdi-1]
 
cmp       ebp,r14d
 
jl        short M00_L20
 
mov       ecx,ebp
 
or        ecx,r14d
 
jl        short M00_L17
 
cmp       edi,ebp
 
jle       short M00_L17
 
M00_L14
  
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L15
 
mov       rax,7FFD8AAD2E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L16
 
M00_L15
  
call      qword ptr [7FFD3266E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L20
 
M00_L16
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L14
 
jmp       short M00_L20
 
M00_L17
  
cmp       ebp,edi
 
jae       near ptr M00_L25
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L18
 
mov       rax,7FFD8AAD2E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L19
 
M00_L18
  
call      qword ptr [7FFD3266E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L20
 
M00_L19
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L17
 
M00_L20
  
sub       ebp,r14d
 
inc       ebp
 
cmp       edi,ebp
 
jne       short M00_L22
 
mov       rdi,rsi
 
M00_L21
  
mov       [rsp+38],rdi
 
mov       rsi,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rsi+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rsi+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L22
  
test      ebp,ebp
 
je        short M00_L23
 
mov       ecx,ebp
 
call      System.String.FastAllocateString(Int32)
 
mov       rdi,rax
 
mov       r8d,ebp
 
cmp       [rdi],dil
 
lea       rcx,[rdi+0C]
 
mov       edx,r14d
 
lea       rdx,[rsi+rdx*2+0C]
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L21
 
M00_L23
  
mov       rdi,1E2CDA90008
 
jmp       short M00_L21
 
M00_L24
  
mov       rdi,rsi
 
jmp       short M00_L21
 
M00_L25
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0AE6064D02241
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFD320270D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD320271E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0AE6064D02241
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD32027318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFD31C44000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFD31FB66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L02
 
test      r8b,18
 
je        short M02_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L00
  
ret
 
M02_L01
  
test      r8b,4
 
je        short M02_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L00
 
M02_L02
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L05
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L00
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L03
 
jmp       short M02_L04
 
M02_L08
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L09
  
jmp       qword ptr [7FFD31E45B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M02_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M02_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFD3202CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C44000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322DF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E4D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFD31F8E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFD31F8E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C44000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322DF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E4D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,1E2CDA90008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
sub       rsp,28
 
movzx     ecx,cx
 
call      qword ptr [7FFD8B537370]; Precode of System.Globalization.CharUnicodeInfo.GetCategoryCasingTableOffsetNoBoundsChecks(UInt32)
 
mov       rcx,[7FFD8B550750]
 
cmp       byte ptr [rcx+rax],0
 
setl      al
 
movzx     eax,al
 
add       rsp,28
 
ret
 
Extern method
System.String.FastAllocateString(Int32)

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpaceComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,216E0800428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,2576E8B7688
 
call      qword ptr [7FFD31DB6C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFD3204CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFD3203EB18]; System.Text.StringBuilder.ToString()
 
mov       rsi,rax
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        near ptr M00_L24
 
movzx     ecx,word ptr [rsi+0C]
 
cmp       ecx,100
 
jae       short M00_L06
 
mov       rax,7FFD8AAD2E40
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       short M00_L07
 
M00_L06
  
call      qword ptr [7FFD3268E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
jne       short M00_L09
 
M00_L07
  
lea       ebp,[rdi-1]
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L08
 
mov       rax,7FFD8AAD2E40
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       near ptr M00_L24
 
M00_L08
  
call      qword ptr [7FFD3268E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        near ptr M00_L24
 
M00_L09
  
xor       r14d,r14d
 
test      edi,edi
 
jle       short M00_L13
 
M00_L10
  
mov       ecx,r14d
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L11
 
mov       rax,7FFD8AAD2E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L13
 
jmp       short M00_L12
 
M00_L11
  
call      qword ptr [7FFD3268E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L13
 
M00_L12
  
inc       r14d
 
cmp       edi,r14d
 
jg        short M00_L10
 
M00_L13
  
lea       ebp,[rdi-1]
 
cmp       ebp,r14d
 
jl        short M00_L20
 
mov       ecx,ebp
 
or        ecx,r14d
 
jl        short M00_L17
 
cmp       edi,ebp
 
jle       short M00_L17
 
M00_L14
  
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L15
 
mov       rax,7FFD8AAD2E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L16
 
M00_L15
  
call      qword ptr [7FFD3268E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L20
 
M00_L16
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L14
 
jmp       short M00_L20
 
M00_L17
  
cmp       ebp,edi
 
jae       near ptr M00_L25
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L18
 
mov       rax,7FFD8AAD2E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L19
 
M00_L18
  
call      qword ptr [7FFD3268E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L20
 
M00_L19
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L17
 
M00_L20
  
sub       ebp,r14d
 
inc       ebp
 
cmp       edi,ebp
 
jne       short M00_L22
 
mov       rdi,rsi
 
M00_L21
  
mov       [rsp+38],rdi
 
mov       rsi,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rsi+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rsi+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L22
  
test      ebp,ebp
 
je        short M00_L23
 
mov       ecx,ebp
 
call      System.String.FastAllocateString(Int32)
 
mov       rdi,rax
 
mov       r8d,ebp
 
cmp       [rdi],dil
 
lea       rcx,[rdi+0C]
 
mov       edx,r14d
 
lea       rdx,[rsi+rdx*2+0C]
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L21
 
M00_L23
  
mov       rdi,2576E8A0008
 
jmp       short M00_L21
 
M00_L24
  
mov       rdi,rsi
 
jmp       short M00_L21
 
M00_L25
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,57C2E347E9C8
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFD320470D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD320471E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,57C2E347E9C8
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD32047318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFD31C64000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFD31FD66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L02
 
test      r8b,18
 
je        short M02_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L00
  
ret
 
M02_L01
  
test      r8b,4
 
je        short M02_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L00
 
M02_L02
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L05
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L00
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L03
 
jmp       short M02_L04
 
M02_L08
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L09
  
jmp       qword ptr [7FFD31E65B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M02_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M02_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFD3204CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C64000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322FF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E6D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFD31FAE9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFD31FAE9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C64000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322FF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E6D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,2576E8A0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
sub       rsp,28
 
movzx     ecx,cx
 
call      qword ptr [7FFD8B537370]; Precode of System.Globalization.CharUnicodeInfo.GetCategoryCasingTableOffsetNoBoundsChecks(UInt32)
 
mov       rcx,[7FFD8B550750]
 
cmp       byte ptr [rcx+rax],0
 
setl      al
 
movzx     eax,al
 
add       rsp,28
 
ret
 
Extern method
System.String.FastAllocateString(Int32)

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpaceComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,227E0800428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,2686E7376A8
 
call      qword ptr [7FFD31DB6C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFD3204CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFD3203EB18]; System.Text.StringBuilder.ToString()
 
mov       rsi,rax
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        near ptr M00_L24
 
movzx     ecx,word ptr [rsi+0C]
 
cmp       ecx,100
 
jae       short M00_L06
 
mov       rax,7FFD8AAD2E40
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       short M00_L07
 
M00_L06
  
call      qword ptr [7FFD3268E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
jne       short M00_L09
 
M00_L07
  
lea       ebp,[rdi-1]
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L08
 
mov       rax,7FFD8AAD2E40
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       near ptr M00_L24
 
M00_L08
  
call      qword ptr [7FFD3268E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        near ptr M00_L24
 
M00_L09
  
xor       r14d,r14d
 
test      edi,edi
 
jle       short M00_L13
 
M00_L10
  
mov       ecx,r14d
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L11
 
mov       rax,7FFD8AAD2E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L13
 
jmp       short M00_L12
 
M00_L11
  
call      qword ptr [7FFD3268E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L13
 
M00_L12
  
inc       r14d
 
cmp       edi,r14d
 
jg        short M00_L10
 
M00_L13
  
lea       ebp,[rdi-1]
 
cmp       ebp,r14d
 
jl        short M00_L20
 
mov       ecx,ebp
 
or        ecx,r14d
 
jl        short M00_L17
 
cmp       edi,ebp
 
jle       short M00_L17
 
M00_L14
  
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L15
 
mov       rax,7FFD8AAD2E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L16
 
M00_L15
  
call      qword ptr [7FFD3268E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L20
 
M00_L16
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L14
 
jmp       short M00_L20
 
M00_L17
  
cmp       ebp,edi
 
jae       near ptr M00_L25
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L18
 
mov       rax,7FFD8AAD2E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L19
 
M00_L18
  
call      qword ptr [7FFD3268E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L20
 
M00_L19
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L17
 
M00_L20
  
sub       ebp,r14d
 
inc       ebp
 
cmp       edi,ebp
 
jne       short M00_L22
 
mov       rdi,rsi
 
M00_L21
  
mov       [rsp+38],rdi
 
mov       rsi,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rsi+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rsi+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L22
  
test      ebp,ebp
 
je        short M00_L23
 
mov       ecx,ebp
 
call      System.String.FastAllocateString(Int32)
 
mov       rdi,rax
 
mov       r8d,ebp
 
cmp       [rdi],dil
 
lea       rcx,[rdi+0C]
 
mov       edx,r14d
 
lea       rdx,[rsi+rdx*2+0C]
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L21
 
M00_L23
  
mov       rdi,2686E720008
 
jmp       short M00_L21
 
M00_L24
  
mov       rdi,rsi
 
jmp       short M00_L21
 
M00_L25
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,49B348C7ECF5
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFD320470D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD320471E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,49B348C7ECF5
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD32047318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFD31C64000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFD31FD66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L02
 
test      r8b,18
 
je        short M02_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L00
  
ret
 
M02_L01
  
test      r8b,4
 
je        short M02_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L00
 
M02_L02
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L05
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L00
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L03
 
jmp       short M02_L04
 
M02_L08
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L09
  
jmp       qword ptr [7FFD31E65B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M02_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M02_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFD3204CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C64000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322FF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E6D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFD31FAE9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFD31FAE9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C64000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322FF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E6D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,2686E720008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
sub       rsp,28
 
movzx     ecx,cx
 
call      qword ptr [7FFD8B537370]; Precode of System.Globalization.CharUnicodeInfo.GetCategoryCasingTableOffsetNoBoundsChecks(UInt32)
 
mov       rcx,[7FFD8B550750]
 
cmp       byte ptr [rcx+rax],0
 
setl      al
 
movzx     eax,al
 
add       rsp,28
 
ret
 
Extern method
System.String.FastAllocateString(Int32)

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpaceComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,193E0400428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,1D46E4F76A8
 
call      qword ptr [7FFD31DB6C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFD3204CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFD3203EB18]; System.Text.StringBuilder.ToString()
 
mov       rsi,rax
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        near ptr M00_L24
 
movzx     ecx,word ptr [rsi+0C]
 
cmp       ecx,100
 
jae       short M00_L06
 
mov       rax,7FFD8AAD2E40
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       short M00_L07
 
M00_L06
  
call      qword ptr [7FFD3268E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
jne       short M00_L09
 
M00_L07
  
lea       ebp,[rdi-1]
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L08
 
mov       rax,7FFD8AAD2E40
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       near ptr M00_L24
 
M00_L08
  
call      qword ptr [7FFD3268E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        near ptr M00_L24
 
M00_L09
  
xor       r14d,r14d
 
test      edi,edi
 
jle       short M00_L13
 
M00_L10
  
mov       ecx,r14d
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L11
 
mov       rax,7FFD8AAD2E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L13
 
jmp       short M00_L12
 
M00_L11
  
call      qword ptr [7FFD3268E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L13
 
M00_L12
  
inc       r14d
 
cmp       edi,r14d
 
jg        short M00_L10
 
M00_L13
  
lea       ebp,[rdi-1]
 
cmp       ebp,r14d
 
jl        short M00_L20
 
mov       ecx,ebp
 
or        ecx,r14d
 
jl        short M00_L17
 
cmp       edi,ebp
 
jle       short M00_L17
 
M00_L14
  
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L15
 
mov       rax,7FFD8AAD2E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L16
 
M00_L15
  
call      qword ptr [7FFD3268E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L20
 
M00_L16
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L14
 
jmp       short M00_L20
 
M00_L17
  
cmp       ebp,edi
 
jae       near ptr M00_L25
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L18
 
mov       rax,7FFD8AAD2E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L19
 
M00_L18
  
call      qword ptr [7FFD3268E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L20
 
M00_L19
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L17
 
M00_L20
  
sub       ebp,r14d
 
inc       ebp
 
cmp       edi,ebp
 
jne       short M00_L22
 
mov       rdi,rsi
 
M00_L21
  
mov       [rsp+38],rdi
 
mov       rsi,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rsi+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rsi+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L22
  
test      ebp,ebp
 
je        short M00_L23
 
mov       ecx,ebp
 
call      System.String.FastAllocateString(Int32)
 
mov       rdi,rax
 
mov       r8d,ebp
 
cmp       [rdi],dil
 
lea       rcx,[rdi+0C]
 
mov       edx,r14d
 
lea       rdx,[rsi+rdx*2+0C]
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L21
 
M00_L23
  
mov       rdi,1D46E4E0008
 
jmp       short M00_L21
 
M00_L24
  
mov       rdi,rsi
 
jmp       short M00_L21
 
M00_L25
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,5E285839F2C6
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFD320470D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD320471E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,5E285839F2C6
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD32047318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFD31C64000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFD31FD66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L02
 
test      r8b,18
 
je        short M02_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L00
  
ret
 
M02_L01
  
test      r8b,4
 
je        short M02_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L00
 
M02_L02
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L05
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L00
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L03
 
jmp       short M02_L04
 
M02_L08
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L09
  
jmp       qword ptr [7FFD31E65B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M02_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M02_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFD3204CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C64000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322FF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E6D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFD31FAE9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFD31FAE9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C64000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322FF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E6D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,1D46E4E0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
sub       rsp,28
 
movzx     ecx,cx
 
call      qword ptr [7FFD8B537370]; Precode of System.Globalization.CharUnicodeInfo.GetCategoryCasingTableOffsetNoBoundsChecks(UInt32)
 
mov       rcx,[7FFD8B550750]
 
cmp       byte ptr [rcx+rax],0
 
setl      al
 
movzx     eax,al
 
add       rsp,28
 
ret
 
Extern method
System.String.FastAllocateString(Int32)

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpaceComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,1E8BC000428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,22949F276A8
 
call      qword ptr [7FFD31D86C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFD3201CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFD3200EB18]; System.Text.StringBuilder.ToString()
 
mov       rsi,rax
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        near ptr M00_L24
 
movzx     ecx,word ptr [rsi+0C]
 
cmp       ecx,100
 
jae       short M00_L06
 
mov       rax,7FFD8AAD2E40
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       short M00_L07
 
M00_L06
  
call      qword ptr [7FFD3265E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
jne       short M00_L09
 
M00_L07
  
lea       ebp,[rdi-1]
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L08
 
mov       rax,7FFD8AAD2E40
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       near ptr M00_L24
 
M00_L08
  
call      qword ptr [7FFD3265E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        near ptr M00_L24
 
M00_L09
  
xor       r14d,r14d
 
test      edi,edi
 
jle       short M00_L13
 
M00_L10
  
mov       ecx,r14d
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L11
 
mov       rax,7FFD8AAD2E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L13
 
jmp       short M00_L12
 
M00_L11
  
call      qword ptr [7FFD3265E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L13
 
M00_L12
  
inc       r14d
 
cmp       edi,r14d
 
jg        short M00_L10
 
M00_L13
  
lea       ebp,[rdi-1]
 
cmp       ebp,r14d
 
jl        short M00_L20
 
mov       ecx,ebp
 
or        ecx,r14d
 
jl        short M00_L17
 
cmp       edi,ebp
 
jle       short M00_L17
 
M00_L14
  
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L15
 
mov       rax,7FFD8AAD2E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L16
 
M00_L15
  
call      qword ptr [7FFD3265E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L20
 
M00_L16
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L14
 
jmp       short M00_L20
 
M00_L17
  
cmp       ebp,edi
 
jae       near ptr M00_L25
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L18
 
mov       rax,7FFD8AAD2E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L19
 
M00_L18
  
call      qword ptr [7FFD3265E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L20
 
M00_L19
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L17
 
M00_L20
  
sub       ebp,r14d
 
inc       ebp
 
cmp       edi,ebp
 
jne       short M00_L22
 
mov       rdi,rsi
 
M00_L21
  
mov       [rsp+38],rdi
 
mov       rsi,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rsi+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rsi+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L22
  
test      ebp,ebp
 
je        short M00_L23
 
mov       ecx,ebp
 
call      System.String.FastAllocateString(Int32)
 
mov       rdi,rax
 
mov       r8d,ebp
 
cmp       [rdi],dil
 
lea       rcx,[rdi+0C]
 
mov       edx,r14d
 
lea       rdx,[rsi+rdx*2+0C]
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L21
 
M00_L23
  
mov       rdi,22949F10008
 
jmp       short M00_L21
 
M00_L24
  
mov       rdi,rsi
 
jmp       short M00_L21
 
M00_L25
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,8DFDA81984AD
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFD320170D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD320171E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,8DFDA81984AD
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD32017318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFD31C34000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFD31FA66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L02
 
test      r8b,18
 
je        short M02_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L00
  
ret
 
M02_L01
  
test      r8b,4
 
je        short M02_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L00
 
M02_L02
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L05
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L00
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L03
 
jmp       short M02_L04
 
M02_L08
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L09
  
jmp       qword ptr [7FFD31E35B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M02_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M02_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFD3201CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C34000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322CF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E3D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFD31F7E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFD31F7E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C34000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322CF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E3D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,22949F10008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
sub       rsp,28
 
movzx     ecx,cx
 
call      qword ptr [7FFD8B537370]; Precode of System.Globalization.CharUnicodeInfo.GetCategoryCasingTableOffsetNoBoundsChecks(UInt32)
 
mov       rcx,[7FFD8B550750]
 
cmp       byte ptr [rcx+rax],0
 
setl      al
 
movzx     eax,al
 
add       rsp,28
 
ret
 
Extern method
System.String.FastAllocateString(Int32)

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpaceComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,2195EC00428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,259EC9E76A8
 
call      qword ptr [7FFD31DA6C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFD3203CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFD3202EB18]; System.Text.StringBuilder.ToString()
 
mov       rsi,rax
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        near ptr M00_L24
 
movzx     ecx,word ptr [rsi+0C]
 
cmp       ecx,100
 
jae       short M00_L06
 
mov       rax,7FFD8AAD2E40
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       short M00_L07
 
M00_L06
  
call      qword ptr [7FFD3267E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
jne       short M00_L09
 
M00_L07
  
lea       ebp,[rdi-1]
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L08
 
mov       rax,7FFD8AAD2E40
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       near ptr M00_L24
 
M00_L08
  
call      qword ptr [7FFD3267E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        near ptr M00_L24
 
M00_L09
  
xor       r14d,r14d
 
test      edi,edi
 
jle       short M00_L13
 
M00_L10
  
mov       ecx,r14d
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L11
 
mov       rax,7FFD8AAD2E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L13
 
jmp       short M00_L12
 
M00_L11
  
call      qword ptr [7FFD3267E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L13
 
M00_L12
  
inc       r14d
 
cmp       edi,r14d
 
jg        short M00_L10
 
M00_L13
  
lea       ebp,[rdi-1]
 
cmp       ebp,r14d
 
jl        short M00_L20
 
mov       ecx,ebp
 
or        ecx,r14d
 
jl        short M00_L17
 
cmp       edi,ebp
 
jle       short M00_L17
 
M00_L14
  
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L15
 
mov       rax,7FFD8AAD2E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L16
 
M00_L15
  
call      qword ptr [7FFD3267E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L20
 
M00_L16
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L14
 
jmp       short M00_L20
 
M00_L17
  
cmp       ebp,edi
 
jae       near ptr M00_L25
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L18
 
mov       rax,7FFD8AAD2E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L19
 
M00_L18
  
call      qword ptr [7FFD3267E028]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L20
 
M00_L19
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L17
 
M00_L20
  
sub       ebp,r14d
 
inc       ebp
 
cmp       edi,ebp
 
jne       short M00_L22
 
mov       rdi,rsi
 
M00_L21
  
mov       [rsp+38],rdi
 
mov       rsi,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rsi+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rsi+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L22
  
test      ebp,ebp
 
je        short M00_L23
 
mov       ecx,ebp
 
call      System.String.FastAllocateString(Int32)
 
mov       rdi,rax
 
mov       r8d,ebp
 
cmp       [rdi],dil
 
lea       rcx,[rdi+0C]
 
mov       edx,r14d
 
lea       rdx,[rsi+rdx*2+0C]
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L21
 
M00_L23
  
mov       rdi,259EC9D0008
 
jmp       short M00_L21
 
M00_L24
  
mov       rdi,rsi
 
jmp       short M00_L21
 
M00_L25
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,75D7DEE503D8
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFD320370D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD320371E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,75D7DEE503D8
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD32037318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFD31C54000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFD31FC66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L00
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L02
 
M02_L00
  
test      r8,r8
 
je        short M02_L02
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L02
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L02
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L02
  
ret
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L02
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L08
  
cmp       rcx,rdx
 
je        short M02_L02
 
M02_L09
  
jmp       qword ptr [7FFD31E55B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFD3203CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C54000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322EF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E5D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFD31F9E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFD31F9E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C54000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322EF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E5D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,259EC9D0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
sub       rsp,28
 
movzx     ecx,cx
 
call      qword ptr [7FFD8B537370]; Precode of System.Globalization.CharUnicodeInfo.GetCategoryCasingTableOffsetNoBoundsChecks(UInt32)
 
mov       rcx,[7FFD8B550750]
 
cmp       byte ptr [rcx+rax],0
 
setl      al
 
movzx     eax,al
 
add       rsp,28
 
ret
 
Extern method
System.String.FastAllocateString(Int32)

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,27E54800428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,2BEE6997688
 
call      qword ptr [7FFD31D86C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFD31F4D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFD31F696D0]; System.Text.StringBuilder.ToString()
 
mov       [rsp+38],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,390BD7E66967
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFD31F4C000]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD31F4C108]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,390BD7E66967
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD31F4C240]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFD31C34000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFD31F06790]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFD31E35B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFD31F4DA58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C34000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322DF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E3D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFD320857E8]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFD32085800]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C34000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322DF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E3D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,2BEE6980008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,1A955400428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,1E9E73D7688
 
call      qword ptr [7FFD31D76C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFD3200CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFD31FFEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+38],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,861DC1A11FD1
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFD320070D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD320071E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,861DC1A11FD1
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD32007318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFD31C24000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFD31F966E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L02
 
test      r8b,18
 
je        short M02_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L00
  
ret
 
M02_L01
  
test      r8b,4
 
je        short M02_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L00
 
M02_L02
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L05
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L00
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L03
 
jmp       short M02_L04
 
M02_L08
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L09
  
jmp       qword ptr [7FFD31E25B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M02_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M02_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFD31E25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFD3200CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C24000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322BF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E2D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFD31F6E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFD31F6E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C24000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322BF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E2D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,1E9E73C0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,1CC66800428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,20CF4837688
 
call      qword ptr [7FFD31DB6C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFD3204CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFD3203EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+38],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0F4EB01E2302
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFD320470D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD320471E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0F4EB01E2302
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD32047318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFD31C64000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFD31FD66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFD31E65B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFD3204CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C64000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322FF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E6D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFD31FAE9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFD31FAE9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C64000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322FF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E6D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,20CF4820008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,26648C00428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,2A6DAA27688
 
call      qword ptr [7FFD31DA6C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFD3203CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFD3202EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+38],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0AE518C2D8487
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFD320370D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD320371E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0AE518C2D8487
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD32037318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFD31C54000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFD31FC66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L00
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L02
 
M02_L00
  
test      r8,r8
 
je        short M02_L02
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L02
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L02
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L02
  
ret
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L02
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L08
  
cmp       rcx,rdx
 
je        short M02_L02
 
M02_L09
  
jmp       qword ptr [7FFD31E55B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFD3203CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C54000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322EF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E5D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFD31F9E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFD31F9E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C54000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322EF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E5D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,2A6DAA10008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,23A36400428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,27AC43276A8
 
call      qword ptr [7FFD31DA6C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFD3203CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFD3202EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+38],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0E73420ACBAAF
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFD320370D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD320371E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0E73420ACBAAF
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD32037318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFD31C54000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFD31FC66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L02
 
test      r8b,18
 
je        short M02_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L00
  
ret
 
M02_L01
  
test      r8b,4
 
je        short M02_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L00
 
M02_L02
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L05
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L00
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L03
 
jmp       short M02_L04
 
M02_L08
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L09
  
jmp       qword ptr [7FFD31E55B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M02_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M02_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFD3203CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C54000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322EF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E5D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFD31F9E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFD31F9E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C54000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322EF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E5D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,27AC4310008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,25D23C00428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,29DB5B776A8
 
call      qword ptr [7FFD31D86C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFD3201CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFD3200EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+38],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,4B3BE73B061F
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFD320170D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD320171E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,4B3BE73B061F
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD32017318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFD31C34000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFD31FA66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L02
 
test      r8b,18
 
je        short M02_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L00
  
ret
 
M02_L01
  
test      r8b,4
 
je        short M02_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L00
 
M02_L02
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L05
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L00
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L03
 
jmp       short M02_L04
 
M02_L08
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L09
  
jmp       qword ptr [7FFD31E35B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M02_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M02_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFD3201CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C34000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322CF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E3D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFD31F7E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFD31F7E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C34000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322CF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E3D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,29DB5B60008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,2092A800428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,249BC7276A8
 
call      qword ptr [7FFD31DA6C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFD3203CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFD3202EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+38],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,7A23496FAB6A
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFD320370D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD320371E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,7A23496FAB6A
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD32037318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFD31C54000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFD31FC66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L02
 
test      r8b,18
 
je        short M02_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L00
  
ret
 
M02_L01
  
test      r8b,4
 
je        short M02_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L00
 
M02_L02
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L05
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L00
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L03
 
jmp       short M02_L04
 
M02_L08
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L09
  
jmp       qword ptr [7FFD31E55B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M02_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M02_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFD3203CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C54000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322EF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E5D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFD31F9E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFD31F9E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C54000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322EF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E5D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,249BC710008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,1F2ED000428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,2337ECE76A8
 
call      qword ptr [7FFD31D96C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
je        short M00_L06
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFD3202CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFD3201EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+38],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L06
  
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
jmp       short M00_L01
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,4CB6C884DF38
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFD320270D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD320271E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,4CB6C884DF38
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD32027318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFD31C44000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFD31FB66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFD31E45B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFD3202CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C44000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322DF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E4D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFD31F8E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFD31F8E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C44000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322DF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E4D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,2337ECD0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatCharComparison()
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,50
 
vzeroupper
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
vmovdqa   xmmword ptr [rsp+40],xmm4
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       eax,edi
 
mov       rbp,[rcx+rax*8+10]
 
mov       rcx,offset MT_System.Char
 
call      CORINFO_HELP_NEWSFAST
 
mov       rcx,1CACC400428
 
mov       rcx,[rcx]
 
mov       word ptr [rax+8],2C
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+40],xmm0
 
mov       [rsp+40],rbp
 
mov       [rsp+48],rax
 
lea       r8,[rsp+40]
 
mov       [rsp+28],r8
 
mov       dword ptr [rsp+30],2
 
lea       r8,[rsp+28]
 
mov       rdx,20B5A367688
 
call      qword ptr [7FFD31DB6C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       ebp,[rax+8]
 
test      ebp,ebp
 
je        short M00_L04
 
mov       r8,[rsi+8]
 
mov       r14d,[rsi+18]
 
lea       ecx,[r14+rbp]
 
cmp       ecx,[r8+8]
 
ja        short M00_L03
 
movsxd    rcx,r14d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       ebp,2
 
jle       short M00_L02
 
movsxd    r8,ebp
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
add       ebp,r14d
 
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       ebp,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
mov       r8d,ebp
 
call      qword ptr [7FFD31F7D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFD31F996D0]; System.Text.StringBuilder.ToString()
 
mov       [rsp+38],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,50
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,779C0B11F1C
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFD31F7C000]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD31F7C108]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,779C0B11F1C
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD31F7C240]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFD31C64000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFD31F36790]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFD31E65B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFD31F7DA58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C64000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD3230F6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E6D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFD320B57E8]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFD320B5800]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C64000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD3230F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E6D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,20B5A350008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatCharComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       eax,edi
 
mov       rbp,[rcx+rax*8+10]
 
mov       rcx,offset MT_System.Char
 
call      CORINFO_HELP_NEWSFAST
 
mov       rcx,1A3DFC00428
 
mov       rcx,[rcx]
 
mov       word ptr [rax+8],2C
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rbp
 
mov       [rsp+40],rax
 
lea       r8,[rsp+38]
 
mov       [rsp+20],r8
 
mov       dword ptr [rsp+28],2
 
lea       r8,[rsp+20]
 
mov       rdx,1E471BF7688
 
call      qword ptr [7FFD31D96C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFD3202CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFD3201EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0F952DD7F04F
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFD320270D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD320271E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0F952DD7F04F
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD32027318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFD31C44000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFD31FB66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L02
 
test      r8b,18
 
je        short M02_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L00
  
ret
 
M02_L01
  
test      r8b,4
 
je        short M02_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L00
 
M02_L02
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L05
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L00
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L03
 
jmp       short M02_L04
 
M02_L08
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L09
  
jmp       qword ptr [7FFD31E45B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M02_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M02_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFD3202CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C44000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322DF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E4D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFD31F8E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFD31F8E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C44000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322DF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E4D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,1E471BE0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatCharComparison()
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,50
 
vzeroupper
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
vmovdqa   xmmword ptr [rsp+40],xmm4
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       eax,edi
 
mov       rbp,[rcx+rax*8+10]
 
mov       rcx,offset MT_System.Char
 
call      CORINFO_HELP_NEWSFAST
 
mov       rcx,15EF2000428
 
mov       rcx,[rcx]
 
mov       word ptr [rax+8],2C
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+40],xmm0
 
mov       [rsp+40],rbp
 
mov       [rsp+48],rax
 
lea       r8,[rsp+40]
 
mov       [rsp+28],r8
 
mov       dword ptr [rsp+30],2
 
lea       r8,[rsp+28]
 
mov       rdx,19F83DF7688
 
call      qword ptr [7FFD31D96C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       ebp,[rax+8]
 
test      ebp,ebp
 
je        short M00_L04
 
mov       r8,[rsi+8]
 
mov       r14d,[rsi+18]
 
lea       ecx,[r14+rbp]
 
cmp       ecx,[r8+8]
 
ja        short M00_L03
 
movsxd    rcx,r14d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       ebp,2
 
jle       short M00_L02
 
movsxd    r8,ebp
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
add       ebp,r14d
 
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       ebp,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
mov       r8d,ebp
 
call      qword ptr [7FFD3202CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFD3201EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+38],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,50
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,25FB1A753DD6
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFD320270D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD320271E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,25FB1A753DD6
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD32027318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFD31C44000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFD31FB66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L02
 
test      r8b,18
 
je        short M02_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L00
  
ret
 
M02_L01
  
test      r8b,4
 
je        short M02_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L00
 
M02_L02
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L05
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L00
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L03
 
jmp       short M02_L04
 
M02_L08
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L09
  
jmp       qword ptr [7FFD31E45B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M02_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M02_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFD3202CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C44000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322DF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E4D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFD31F8E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFD31F8E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C44000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322DF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E4D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,19F83DE0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatCharComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       eax,edi
 
mov       rbp,[rcx+rax*8+10]
 
mov       rcx,offset MT_System.Char
 
call      CORINFO_HELP_NEWSFAST
 
mov       rcx,23597400428
 
mov       rcx,[rcx]
 
mov       word ptr [rax+8],2C
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rbp
 
mov       [rsp+40],rax
 
lea       r8,[rsp+38]
 
mov       [rsp+20],r8
 
mov       dword ptr [rsp+28],2
 
lea       r8,[rsp+20]
 
mov       rdx,276251A7688
 
call      qword ptr [7FFD31D96C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFD3202CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFD3201EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,68244C5C7C95
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFD320270D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD320271E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,68244C5C7C95
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD32027318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFD31C44000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFD31FB66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L02
 
test      r8b,18
 
je        short M02_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L00
  
ret
 
M02_L01
  
test      r8b,4
 
je        short M02_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L00
 
M02_L02
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L05
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L00
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L03
 
jmp       short M02_L04
 
M02_L08
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L09
  
jmp       qword ptr [7FFD31E45B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M02_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M02_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFD3202CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C44000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322DF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E4D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFD31F8E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFD31F8E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C44000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322DF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E4D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,27625190008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatCharComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       eax,edi
 
mov       rbp,[rcx+rax*8+10]
 
mov       rcx,offset MT_System.Char
 
call      CORINFO_HELP_NEWSFAST
 
mov       rcx,1EA41800428
 
mov       rcx,[rcx]
 
mov       word ptr [rax+8],2C
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rbp
 
mov       [rsp+40],rax
 
lea       r8,[rsp+38]
 
mov       [rsp+20],r8
 
mov       dword ptr [rsp+28],2
 
lea       r8,[rsp+20]
 
mov       rdx,22AD37E76A8
 
call      qword ptr [7FFD31D96C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFD3202CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFD3201EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,64A4BAC46916
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFD320270D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD320271E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,64A4BAC46916
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD32027318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFD31C44000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFD31FB66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFD31E45B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFD3202CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C44000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322DF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E4D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFD31F8E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFD31F8E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C44000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322DF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E4D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,22AD37D0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatCharComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       eax,edi
 
mov       rbp,[rcx+rax*8+10]
 
mov       rcx,offset MT_System.Char
 
call      CORINFO_HELP_NEWSFAST
 
mov       rcx,27BCCC00428
 
mov       rcx,[rcx]
 
mov       word ptr [rax+8],2C
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rbp
 
mov       [rsp+40],rax
 
lea       r8,[rsp+38]
 
mov       [rsp+20],r8
 
mov       dword ptr [rsp+28],2
 
lea       r8,[rsp+20]
 
mov       rdx,2BC5AAD76A8
 
call      qword ptr [7FFD31D96C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFD3202CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFD3201EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,67A460EB0057
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFD320270D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD320271E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,67A460EB0057
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD32027318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFD31C44000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFD31FB66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L02
 
test      r8b,18
 
je        short M02_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L00
  
ret
 
M02_L01
  
test      r8b,4
 
je        short M02_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L00
 
M02_L02
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L05
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L00
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L03
 
jmp       short M02_L04
 
M02_L08
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L09
  
jmp       qword ptr [7FFD31E45B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M02_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M02_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFD3202CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C44000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322DF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E4D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFD31F8E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFD31F8E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C44000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322DF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E4D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,2BC5AAC0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatCharComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L07
 
mov       eax,edi
 
mov       rbp,[rcx+rax*8+10]
 
mov       rcx,offset MT_System.Char
 
call      CORINFO_HELP_NEWSFAST
 
mov       rcx,1C368800428
 
mov       rcx,[rcx]
 
mov       word ptr [rax+8],2C
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rbp
 
mov       [rsp+40],rax
 
lea       r8,[rsp+38]
 
mov       [rsp+20],r8
 
mov       dword ptr [rsp+28],2
 
lea       r8,[rsp+20]
 
mov       rdx,203EA7976A8
 
call      qword ptr [7FFD31DB6C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
je        short M00_L06
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFD3204CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFD3203EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
jmp       short M00_L01
 
M00_L07
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,55CD6381C48C
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFD320470D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD320471E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,55CD6381C48C
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD32047318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFD31C64000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFD31FD66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFD31E65B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFD3204CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C64000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322FF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E6D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFD31FAE9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFD31FAE9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C64000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322FF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E6D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,203EA780008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatCharComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L07
 
mov       eax,edi
 
mov       rbp,[rcx+rax*8+10]
 
mov       rcx,offset MT_System.Char
 
call      CORINFO_HELP_NEWSFAST
 
mov       rcx,245A9800428
 
mov       rcx,[rcx]
 
mov       word ptr [rax+8],2C
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rbp
 
mov       [rsp+40],rax
 
lea       r8,[rsp+38]
 
mov       [rsp+20],r8
 
mov       dword ptr [rsp+28],2
 
lea       r8,[rsp+20]
 
mov       rdx,2863B7D76A8
 
call      qword ptr [7FFD31D96C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
je        short M00_L06
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFD3202CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFD3201EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
jmp       short M00_L01
 
M00_L07
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0C0D1A00EAA8E
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFD320270D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD320271E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0C0D1A00EAA8E
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD32027318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFD31C44000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFD31FB66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L02
 
test      r8b,18
 
je        short M02_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L00
  
ret
 
M02_L01
  
test      r8b,4
 
je        short M02_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L00
 
M02_L02
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L05
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L00
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L03
 
jmp       short M02_L04
 
M02_L08
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L09
  
jmp       qword ptr [7FFD31E45B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M02_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M02_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFD3202CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C44000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322DF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E4D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFD31F8E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFD31F8E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C44000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322DF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E4D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,2863B7C0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatStringComparison()
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,50
 
vzeroupper
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
vmovdqa   xmmword ptr [rsp+40],xmm4
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
mov       rcx,[rcx+r8*8+10]
 
mov       r8,2001C400428
 
mov       r8,[r8]
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+40],xmm0
 
mov       [rsp+40],rcx
 
mov       rcx,240AA409078
 
mov       [rsp+48],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],2
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,240AA417688
 
call      qword ptr [7FFD31D96C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       ebp,[rax+8]
 
test      ebp,ebp
 
je        short M00_L04
 
mov       r8,[rsi+8]
 
mov       r14d,[rsi+18]
 
lea       ecx,[r14+rbp]
 
cmp       ecx,[r8+8]
 
ja        short M00_L03
 
movsxd    rcx,r14d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       ebp,2
 
jle       short M00_L02
 
movsxd    r8,ebp
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
add       ebp,r14d
 
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       ebp,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
mov       r8d,ebp
 
call      qword ptr [7FFD3202CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFD3201EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+38],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,50
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,27CC7EE2358A
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFD320270D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD320271E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,27CC7EE2358A
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD32027318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFD31C44000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFD31FB66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFD31E45B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFD3202CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C44000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322DF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E4D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFD31F8E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFD31F8E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C44000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322DF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E4D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,240AA400008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
mov       rcx,[rcx+r8*8+10]
 
mov       r8,1BEFCC00428
 
mov       r8,[r8]
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rcx
 
mov       rcx,1FF8A929078
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+38]
 
mov       [rsp+20],rcx
 
mov       dword ptr [rsp+28],2
 
mov       rcx,r8
 
lea       r8,[rsp+20]
 
mov       rdx,1FF8A937688
 
call      qword ptr [7FFD31D76C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFD3200CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFD31FFEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,772F9B72A429
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFD320070D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD320071E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,772F9B72A429
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD32007318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFD31C24000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFD31F966E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L02
 
test      r8b,18
 
je        short M02_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L00
  
ret
 
M02_L01
  
test      r8b,4
 
je        short M02_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L00
 
M02_L02
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L05
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L00
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L03
 
jmp       short M02_L04
 
M02_L08
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L09
  
jmp       qword ptr [7FFD31E25B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M02_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M02_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFD31E25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFD3200CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C24000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322BF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E2D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFD31F6E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFD31F6E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C24000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322BF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E2D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,1FF8A920008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
mov       rcx,[rcx+r8*8+10]
 
mov       r8,24E8C000428
 
mov       r8,[r8]
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rcx
 
mov       rcx,28F1DF99078
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+38]
 
mov       [rsp+20],rcx
 
mov       dword ptr [rsp+28],2
 
mov       rcx,r8
 
lea       r8,[rsp+20]
 
mov       rdx,28F1DFA7688
 
call      qword ptr [7FFD31DA6C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFD3203CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFD3202EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,1104D94E96A9
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFD320370D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD320371E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,1104D94E96A9
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD32037318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFD31C54000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFD31FC66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L00
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L02
 
M02_L00
  
test      r8,r8
 
je        short M02_L02
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L02
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L02
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L02
  
ret
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L02
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L08
  
cmp       rcx,rdx
 
je        short M02_L02
 
M02_L09
  
jmp       qword ptr [7FFD31E55B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFD3203CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C54000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322EF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E5D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFD31F9E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFD31F9E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C54000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322EF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E5D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,28F1DF90008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
mov       rcx,[rcx+r8*8+10]
 
mov       r8,15DF7800428
 
mov       r8,[r8]
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rcx
 
mov       rcx,19E854D9078
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+38]
 
mov       [rsp+20],rcx
 
mov       dword ptr [rsp+28],2
 
mov       rcx,r8
 
lea       r8,[rsp+20]
 
mov       rdx,19E854E7688
 
call      qword ptr [7FFD31D86C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFD3201CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFD3200EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,52A7988C02BB
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFD320170D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD320171E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,52A7988C02BB
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD32017318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFD31C34000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFD31FA66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L02
 
test      r8b,18
 
je        short M02_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L00
  
ret
 
M02_L01
  
test      r8b,4
 
je        short M02_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L00
 
M02_L02
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L05
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L00
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L03
 
jmp       short M02_L04
 
M02_L08
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L09
  
jmp       qword ptr [7FFD31E35B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M02_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M02_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFD3201CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C34000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322CF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E3D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFD31F7E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFD31F7E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C34000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322CF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E3D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,19E854D0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
mov       rcx,[rcx+r8*8+10]
 
mov       r8,248A1C00428
 
mov       r8,[r8]
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rcx
 
mov       rcx,2892FD69078
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+38]
 
mov       [rsp+20],rcx
 
mov       dword ptr [rsp+28],2
 
mov       rcx,r8
 
lea       r8,[rsp+20]
 
mov       rdx,2892FD776A8
 
call      qword ptr [7FFD31D86C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFD3201CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFD3200EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,3F847113F4DD
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFD320170D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD320171E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,3F847113F4DD
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD32017318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFD31C34000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFD31FA66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L02
 
test      r8b,18
 
je        short M02_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L00
  
ret
 
M02_L01
  
test      r8b,4
 
je        short M02_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L00
 
M02_L02
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L05
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L00
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L03
 
jmp       short M02_L04
 
M02_L08
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L09
  
jmp       qword ptr [7FFD31E35B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M02_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M02_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFD3201CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C34000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322CF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E3D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFD31F7E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFD31F7E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C34000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322CF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E3D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,2892FD60008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
mov       rcx,[rcx+r8*8+10]
 
mov       r8,26E32800428
 
mov       r8,[r8]
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rcx
 
mov       rcx,2AEC0769078
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+38]
 
mov       [rsp+20],rcx
 
mov       dword ptr [rsp+28],2
 
mov       rcx,r8
 
lea       r8,[rsp+20]
 
mov       rdx,2AEC07776A8
 
call      qword ptr [7FFD31DA6C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFD3203CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFD3202EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,200FA679E5D6
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFD320370D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD320371E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,200FA679E5D6
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD32037318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFD31C54000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFD31FC66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFD31E55B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFD3203CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C54000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322EF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E5D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFD31F9E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFD31F9E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C54000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322EF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E5D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,2AEC0760008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
mov       rcx,[rcx+r8*8+10]
 
mov       r8,20AA9000428
 
mov       r8,[r8]
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rcx
 
mov       rcx,24B36D99078
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+38]
 
mov       [rsp+20],rcx
 
mov       dword ptr [rsp+28],2
 
mov       rcx,r8
 
lea       r8,[rsp+20]
 
mov       rdx,24B36DA76A8
 
call      qword ptr [7FFD31D96C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFD3202CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFD3201EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,5A4226E2A8D3
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFD320270D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD320271E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,5A4226E2A8D3
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD32027318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFD31C44000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFD31FB66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L02
 
test      r8b,18
 
je        short M02_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L00
  
ret
 
M02_L01
  
test      r8b,4
 
je        short M02_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L00
 
M02_L02
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L05
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L00
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L03
 
jmp       short M02_L04
 
M02_L08
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L09
  
jmp       qword ptr [7FFD31E45B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M02_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M02_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFD3202CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C44000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322DF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E4D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFD31F8E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFD31F8E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C44000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322DF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E4D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,24B36D90008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L07
 
mov       r8d,edi
 
mov       rcx,[rcx+r8*8+10]
 
mov       r8,1E279800428
 
mov       r8,[r8]
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rcx
 
mov       rcx,223077F9078
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+38]
 
mov       [rsp+20],rcx
 
mov       dword ptr [rsp+28],2
 
mov       rcx,r8
 
lea       r8,[rsp+20]
 
mov       rdx,223078076A8
 
call      qword ptr [7FFD31DA6C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
je        short M00_L06
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFD3203CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFD3202EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
jmp       short M00_L01
 
M00_L07
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0F02CFC413DE7
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFD320370D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD320371E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0F02CFC413DE7
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFD32037318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFD31C54000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFD31FC66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L00
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L02
 
M02_L00
  
test      r8,r8
 
je        short M02_L02
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L02
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L02
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L02
  
ret
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L02
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L08
  
cmp       rcx,rdx
 
je        short M02_L02
 
M02_L09
  
jmp       qword ptr [7FFD31E55B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFD3203CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C54000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322EF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E5D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFD31F9E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFD31F9E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C54000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322EF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E5D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,223077F0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatChar()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       ecx,2C
 
call      qword ptr [7FFD327B6040]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-58],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       edi,ecx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
cmp       dword ptr [rbx+8],0
 
je        near ptr M01_L13
 
mov       rcx,213F7808B08
 
mov       r14,[rcx]
 
mov       rcx,[r14+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r14+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r15,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r15],r15b
 
mov       rcx,r15
 
xor       edx,edx
 
call      qword ptr [7FFD3200C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-50],r15
 
mov       r13d,[rbx+8]
 
xor       r12d,r12d
 
test      r13d,r13d
 
jle       near ptr M01_L10
 
mov       r8d,[rbx+8]
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r14d,[r8+8]
 
test      r14d,r14d
 
je        short M01_L06
 
mov       r8,[r15+8]
 
mov       eax,[r15+18]
 
mov       [rbp-44],eax
 
lea       ecx,[rax+r14]
 
cmp       ecx,[r8+8]
 
ja        short M01_L05
 
movsxd    rcx,eax
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r14d,2
 
jg        short M01_L03
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r14d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r14d
 
add       r8,r8
 
call      qword ptr [7FFD31E25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
add       r14d,[rbp-44]
 
mov       [r15+18],r14d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r15
 
mov       r8d,r14d
 
call      qword ptr [7FFD3200CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r13d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,25489831C14
 
mov       rcx,[r15+8]
 
mov       r8d,[r15+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r15+18],eax
 
jmp       short M01_L09
 
M01_L07
  
movzx     edx,di
 
mov       rcx,r15
 
call      qword ptr [7FFD3200C3D8]; System.Text.StringBuilder.Append(Char)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r15
 
mov       r8d,2
 
call      qword ptr [7FFD3200CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r13d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r15
 
call      qword ptr [7FFD31FFEB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-58],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-58]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,25489830008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r14+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD324DEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r14,2C
 
lock dec  dword ptr [r14]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r14+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r15,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,213F7808B08
 
mov       r14,[rcx]
 
mov       r15,[r14+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r15+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-50]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r15+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFD3200C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-50]
 
mov       rcx,[r15+8]
 
call      qword ptr [r15+18]
 
test      eax,eax
 
mov       rbx,[rbp-50]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r14+20],0
 
jne       short M01_L19
 
lea       rcx,[r14+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r14+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r14+28]
 
jg        short M01_L20
 
mov       rcx,[r14+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD324DEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r14,2C
 
lock dec  dword ptr [r14]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatChar()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       ecx,2C
 
call      qword ptr [7FFD327E64F0]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       edi,ecx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
cmp       dword ptr [rbx+8],0
 
je        near ptr M01_L13
 
mov       rcx,17F6BC08B08
 
mov       r14,[rcx]
 
mov       rcx,[r14+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r14+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r15,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r15],r15b
 
mov       rcx,r15
 
xor       edx,edx
 
call      qword ptr [7FFD31F5D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r15
 
mov       r13d,[rbx+8]
 
xor       r12d,r12d
 
test      r13d,r13d
 
jle       near ptr M01_L10
 
mov       r8d,[rbx+8]
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r15+8]
 
mov       eax,[r15+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r15+18],r14d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r15
 
call      qword ptr [7FFD31F5D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r13d
 
sub       ecx,1
 
jo        near ptr M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,1BFFDA81B34
 
mov       rcx,[r15+8]
 
mov       r8d,[r15+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
add       r8d,2
 
mov       [r15+18],r8d
 
jmp       short M01_L09
 
M01_L07
  
movzx     edx,di
 
mov       rcx,r15
 
call      qword ptr [7FFD31F5D2D8]; System.Text.StringBuilder.Append(Char)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r15
 
mov       r8d,2
 
call      qword ptr [7FFD31F5D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r13d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r15
 
call      qword ptr [7FFD31F796D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,1BFFDA80008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r14+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD3250EF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r14,2C
 
lock dec  dword ptr [r14]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r14+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r15,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,17F6BC08B08
 
mov       r14,[rcx]
 
mov       r15,[r14+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r15+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r15+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFD31F5D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r15+8]
 
call      qword ptr [r15+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r14+20],0
 
jne       short M01_L19
 
lea       rcx,[r14+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r14+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r14+28]
 
jg        short M01_L20
 
mov       rcx,[r14+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD3250EEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r14,2C
 
lock dec  dword ptr [r14]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatChar()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       ecx,2C
 
call      qword ptr [7FFD327F64F0]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       edi,ecx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,10914008B08
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FFD31F6D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FFD31F6D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,149A5FB1B34
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
jmp       short M01_L09
 
M01_L07
  
movzx     edx,di
 
mov       rcx,r13
 
call      qword ptr [7FFD31F6D2D8]; System.Text.StringBuilder.Append(Char)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FFD31F6D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FFD31F896D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,149A5FB0008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD3251EF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,10914008B08
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFD31F6D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD3251EEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatChar()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       ecx,2C
 
call      qword ptr [7FFD327D64F0]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       edi,ecx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,1B4CD00AB00
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FFD31F4D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FFD31F4D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,1F55ADB1B34
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
jmp       short M01_L09
 
M01_L07
  
movzx     edx,di
 
mov       rcx,r13
 
call      qword ptr [7FFD31F4D2D8]; System.Text.StringBuilder.Append(Char)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FFD31F4D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FFD31F696D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,1F55ADB0008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD324FEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,1B4CD00AB00
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFD31F4D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD324FEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatChar()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       ecx,2C
 
call      qword ptr [7FFD327D7AC8]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       edi,ecx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,246B1008B08
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FFD31F4D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FFD31F4D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,28743021B34
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
jmp       short M01_L09
 
M01_L07
  
movzx     edx,di
 
mov       rcx,r13
 
call      qword ptr [7FFD31F4D2D8]; System.Text.StringBuilder.Append(Char)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FFD31F4D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FFD31F696D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,28743020008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD324FEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,246B1008B08
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFD31F4D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD324FEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatChar()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       ecx,2C
 
call      qword ptr [7FFD32807AC8]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       edi,ecx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,2413F808B08
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FFD31F7D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FFD31F7D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,281D1781B34
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
jmp       short M01_L09
 
M01_L07
  
movzx     edx,di
 
mov       rcx,r13
 
call      qword ptr [7FFD31F7D2D8]; System.Text.StringBuilder.Append(Char)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FFD31F7D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FFD31F996D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,281D1780008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD3252EF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,2413F808B08
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFD31F7D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD3252EEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatChar()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       ecx,2C
 
call      qword ptr [7FFD327E7AC8]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       edi,ecx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,1D67880AB00
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FFD31F5D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FFD31F5D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,2170A631B34
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
jmp       short M01_L09
 
M01_L07
  
movzx     edx,di
 
mov       rcx,r13
 
call      qword ptr [7FFD31F5D2D8]; System.Text.StringBuilder.Append(Char)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FFD31F5D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FFD31F796D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,2170A630008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD3250EF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,1D67880AB00
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFD31F5D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD3250EEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatChar()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       ecx,2C
 
call      qword ptr [7FFD327C75A0]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       edi,ecx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,1D425C02B38
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FFD31F3D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FFD31F3D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,214AB9A1B34
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
jmp       short M01_L09
 
M01_L07
  
movzx     edx,di
 
mov       rcx,r13
 
call      qword ptr [7FFD31F3D2D8]; System.Text.StringBuilder.Append(Char)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FFD31F3D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FFD31F596D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,214AB9A0008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD324EEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,1D425C02B38
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFD31F3D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD324EEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatString()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       rcx,20DB51E9078
 
call      qword ptr [7FFD327B6508]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		delimiter ??= ControlChars.CommaSpace;
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-58],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       rsi,rcx
 
mov       rdi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
cmp       dword ptr [rbx+8],0
 
je        near ptr M01_L13
 
mov       rcx,20DB51E9078
 
test      rsi,rsi
 
cmove     rsi,rcx
 
mov       rcx,1CD27408B08
 
mov       r14,[rcx]
 
mov       rcx,[r14+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r14+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r15,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r15],r15b
 
mov       rcx,r15
 
xor       edx,edx
 
call      qword ptr [7FFD3200C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-50],r15
 
mov       r13d,[rbx+8]
 
xor       r12d,r12d
 
test      r13d,r13d
 
jle       near ptr M01_L10
 
mov       r8d,[rbx+8]
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r14d,[r8+8]
 
test      r14d,r14d
 
je        short M01_L06
 
mov       r8,[r15+8]
 
mov       eax,[r15+18]
 
mov       [rbp-44],eax
 
lea       ecx,[rax+r14]
 
cmp       ecx,[r8+8]
 
ja        short M01_L05
 
movsxd    rcx,eax
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r14d,2
 
jg        short M01_L03
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r14d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r14d
 
add       r8,r8
 
call      qword ptr [7FFD31E25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
add       r14d,[rbp-44]
 
mov       [r15+18],r14d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r15
 
mov       r8d,r14d
 
call      qword ptr [7FFD3200CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r13d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rdi],0
 
je        short M01_L07
 
mov       rdx,20DB51E1C14
 
mov       rcx,[r15+8]
 
mov       r8d,[r15+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r15+18],eax
 
jmp       short M01_L09
 
M01_L07
  
mov       rcx,r15
 
mov       rdx,rsi
 
call      qword ptr [7FFD3200C2A0]; System.Text.StringBuilder.Append(System.String)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r15
 
mov       r8d,2
 
call      qword ptr [7FFD3200CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r13d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r15
 
call      qword ptr [7FFD31FFEB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-58],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-58]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,20DB51E0008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r14+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD324DEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r14,2C
 
lock dec  dword ptr [r14]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r14+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r15,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,1CD27408B08
 
mov       r14,[rcx]
 
mov       r15,[r14+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r15+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-50]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r15+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFD3200C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-50]
 
mov       rcx,[r15+8]
 
call      qword ptr [r15+18]
 
test      eax,eax
 
mov       rbx,[rbp-50]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r14+20],0
 
jne       short M01_L19
 
lea       rcx,[r14+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r14+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r14+28]
 
jg        short M01_L20
 
mov       rcx,[r14+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD324DEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r14,2C
 
lock dec  dword ptr [r14]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatString()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       rcx,25E84CA9078
 
call      qword ptr [7FFD327F6058]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		delimiter ??= ControlChars.CommaSpace;
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       rsi,rcx
 
mov       rdi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
cmp       dword ptr [rbx+8],0
 
je        near ptr M01_L13
 
mov       rcx,25E84CA9078
 
test      rsi,rsi
 
cmove     rsi,rcx
 
mov       rcx,21DF2C0AB00
 
mov       r14,[rcx]
 
mov       rcx,[r14+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r14+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r15,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r15],r15b
 
mov       rcx,r15
 
xor       edx,edx
 
call      qword ptr [7FFD31F6D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r15
 
mov       r13d,[rbx+8]
 
xor       r12d,r12d
 
test      r13d,r13d
 
jle       near ptr M01_L10
 
mov       r8d,[rbx+8]
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r15+8]
 
mov       eax,[r15+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r15+18],r14d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r15
 
call      qword ptr [7FFD31F6D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r13d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rdi],0
 
je        short M01_L07
 
mov       rdx,25E84CA1B34
 
mov       rcx,[r15+8]
 
mov       r8d,[r15+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r15+18],eax
 
jmp       short M01_L09
 
M01_L07
  
mov       rcx,r15
 
mov       rdx,rsi
 
call      qword ptr [7FFD31F6D1A0]; System.Text.StringBuilder.Append(System.String)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r15
 
mov       r8d,2
 
call      qword ptr [7FFD31F6D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r13d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r15
 
call      qword ptr [7FFD31F896D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,25E84CA0008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r14+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD3251EF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r14,2C
 
lock dec  dword ptr [r14]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r14+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r15,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,21DF2C0AB00
 
mov       r14,[rcx]
 
mov       r15,[r14+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r15+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r15+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFD31F6D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r15+8]
 
call      qword ptr [r15+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r14+20],0
 
jne       short M01_L19
 
lea       rcx,[r14+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r14+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r14+28]
 
jg        short M01_L20
 
mov       rcx,[r14+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD3251EEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r14,2C
 
lock dec  dword ptr [r14]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatString()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       rcx,289C4E89078
 
call      qword ptr [7FFD327F6508]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		delimiter ??= ControlChars.CommaSpace;
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,289C4E89078
 
test      rdi,rdi
 
cmove     rdi,rcx
 
mov       rcx,2493300AB00
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FFD31F6D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FFD31F6D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,289C4E81B34
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
jmp       short M01_L09
 
M01_L07
  
mov       rcx,r13
 
mov       rdx,rdi
 
call      qword ptr [7FFD31F6D1A0]; System.Text.StringBuilder.Append(System.String)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FFD31F6D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FFD31F896D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,289C4E80008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD3251EF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,2493300AB00
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFD31F6D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD3251EEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatString()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       rcx,29AADEE9078
 
call      qword ptr [7FFD327E6058]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		delimiter ??= ControlChars.CommaSpace;
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,29AADEE9078
 
test      rdi,rdi
 
cmove     rdi,rcx
 
mov       rcx,25A20008B08
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FFD3203C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FFD3203CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,29AADEE1C14
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
jmp       short M01_L09
 
M01_L07
  
mov       rcx,r13
 
mov       rdx,rdi
 
call      qword ptr [7FFD3203C2A0]; System.Text.StringBuilder.Append(System.String)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FFD3203CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FFD3202EB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,29AADEE0008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD3250EF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,25A20008B08
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFD3203C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD3250EEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatString()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       rcx,2F3ED7F9078
 
call      qword ptr [7FFD327D75B8]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		delimiter ??= ControlChars.CommaSpace;
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,2F3ED7F9078
 
test      rdi,rdi
 
cmove     rdi,rcx
 
mov       rcx,2B35F80AB00
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FFD31F4D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FFD31F4D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,2F3ED7F1B34
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
jmp       short M01_L09
 
M01_L07
  
mov       rcx,r13
 
mov       rdx,rdi
 
call      qword ptr [7FFD31F4D1A0]; System.Text.StringBuilder.Append(System.String)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FFD31F4D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FFD31F696D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,2F3ED7F0008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD324FEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,2B35F80AB00
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFD31F4D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD324FEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatString()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       rcx,21229369078
 
call      qword ptr [7FFD32807AE0]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		delimiter ??= ControlChars.CommaSpace;
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,21229369078
 
test      rdi,rdi
 
cmove     rdi,rcx
 
mov       rcx,1D19F402B38
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FFD31F7D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FFD31F7D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,21229361B34
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
jmp       short M01_L09
 
M01_L07
  
mov       rcx,r13
 
mov       rdx,rdi
 
call      qword ptr [7FFD31F7D1A0]; System.Text.StringBuilder.Append(System.String)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FFD31F7D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FFD31F996D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,21229360008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD3252EF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,1D19F402B38
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFD31F7D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD3252EEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatString()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       rcx,205D2119078
 
call      qword ptr [7FFD327E7AE0]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		delimiter ??= ControlChars.CommaSpace;
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,205D2119078
 
test      rdi,rdi
 
cmove     rdi,rcx
 
mov       rcx,1C540408B08
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FFD3203C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FFD3203CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,205D2111C14
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
jmp       short M01_L09
 
M01_L07
  
mov       rcx,r13
 
mov       rdx,rdi
 
call      qword ptr [7FFD3203C2A0]; System.Text.StringBuilder.Append(System.String)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FFD3203CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FFD3202EB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,205D2110008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD3250EF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,1C540408B08
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFD3203C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD3250EEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatString()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       rcx,220466C9078
 
call      qword ptr [7FFD327F7AE0]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		delimiter ??= ControlChars.CommaSpace;
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,220466C9078
 
test      rdi,rdi
 
cmove     rdi,rcx
 
mov       rcx,1DFB8808B08
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FFD3204C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FFD3204CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,220466C1C14
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
jmp       short M01_L09
 
M01_L07
  
mov       rcx,r13
 
mov       rdx,rdi
 
call      qword ptr [7FFD3204C2A0]; System.Text.StringBuilder.Append(System.String)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FFD3204CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FFD3203EB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,220466C0008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD3251EF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,1DFB8808B08
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFD3204C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD3251EEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinCharComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       dword ptr [rsp+30],2C
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
lea       r8,[rsp+30]
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
mov       r9d,1
 
call      qword ptr [7FFD327E6340]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+90]
 
test      rbp,rbp
 
je        near ptr M01_L19
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L20
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        short M01_L04
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L21
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L04
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L04
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L05
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
je        short M01_L02
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L04
 
M01_L02
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFD3203CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L15
 
jmp       short M01_L06
 
M01_L05
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L06
  
test      esi,esi
 
je        short M01_L08
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[rsi+r13]
 
cmp       ecx,[r8+8]
 
ja        near ptr M01_L16
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        near ptr M01_L17
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
je        near ptr M01_L14
 
M01_L07
  
add       r13d,esi
 
mov       [rbx+18],r13d
 
M01_L08
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        short M01_L13
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L22
 
M01_L09
  
test      rcx,rcx
 
je        short M01_L13
 
lea       rdx,[rcx+0C]
 
mov       r13d,[rcx+8]
 
test      r13d,r13d
 
je        short M01_L13
 
mov       r8,[rbx+8]
 
mov       r12d,[rbx+18]
 
lea       ecx,[r12+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L12
 
movsxd    rcx,r12d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r13d,2
 
jg        near ptr M01_L18
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r13d,2
 
je        short M01_L11
 
M01_L10
  
add       r13d,r12d
 
mov       [rbx+18],r13d
 
jmp       short M01_L13
 
M01_L11
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L10
 
M01_L12
  
mov       rcx,rbx
 
mov       r8d,r13d
 
call      qword ptr [7FFD3203CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L13
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L06
 
jmp       short M01_L15
 
M01_L14
  
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
jmp       near ptr M01_L07
 
M01_L15
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L16
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFD3203CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M01_L08
 
M01_L17
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M01_L07
 
M01_L18
  
movsxd    r8,r13d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M01_L10
 
M01_L19
  
mov       ecx,6
 
call      qword ptr [7FFD31F9ED00]
 
int       3
 
M01_L20
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L21
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 
M01_L22
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L09
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinCharComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       dword ptr [rsp+30],2C
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
lea       r8,[rsp+30]
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
mov       r9d,1
 
call      qword ptr [7FFD327F64C0]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+90]
 
test      rbp,rbp
 
je        near ptr M01_L20
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L21
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L05
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L22
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L05
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L05
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L04
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
je        short M01_L02
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L05
 
M01_L02
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFD3204CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L05
 
M01_L04
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L05
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L18
 
M01_L06
  
test      esi,esi
 
je        short M01_L10
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[rsi+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L09
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        short M01_L11
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
je        short M01_L08
 
M01_L07
  
add       r13d,esi
 
mov       [rbx+18],r13d
 
jmp       short M01_L10
 
M01_L08
  
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L07
 
M01_L09
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFD3204CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L10
  
mov       eax,r15d
 
mov       rcx,[rbp+rax*8+10]
 
test      rcx,rcx
 
je        short M01_L13
 
jmp       short M01_L14
 
M01_L11
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L07
 
M01_L12
  
mov       rcx,rbx
 
mov       r8d,r13d
 
call      qword ptr [7FFD3204CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L13
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L06
 
jmp       short M01_L18
 
M01_L14
  
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L23
 
M01_L15
  
test      rcx,rcx
 
je        short M01_L13
 
lea       rdx,[rcx+0C]
 
mov       r13d,[rcx+8]
 
test      r13d,r13d
 
je        short M01_L13
 
mov       r8,[rbx+8]
 
mov       r12d,[rbx+18]
 
lea       ecx,[r12+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L12
 
movsxd    rcx,r12d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r13d,2
 
jg        short M01_L17
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r13d,2
 
je        short M01_L19
 
M01_L16
  
add       r13d,r12d
 
mov       [rbx+18],r13d
 
jmp       short M01_L13
 
M01_L17
  
movsxd    r8,r13d
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L16
 
M01_L18
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L19
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L16
 
M01_L20
  
mov       ecx,6
 
call      qword ptr [7FFD31FAED00]
 
int       3
 
M01_L21
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L22
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 
M01_L23
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L15
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinCharComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       dword ptr [rsp+30],2C
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
lea       r8,[rsp+30]
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
mov       r9d,1
 
call      qword ptr [7FFD327D64C0]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+80]
 
test      rbp,rbp
 
je        near ptr M01_L20
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L21
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L05
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L22
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L05
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L05
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L04
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
je        short M01_L02
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L05
 
M01_L02
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFD3202CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L05
 
M01_L04
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L05
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L14
 
M01_L06
  
test      esi,esi
 
je        short M01_L08
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        near ptr M01_L17
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        near ptr M01_L15
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
je        near ptr M01_L18
 
M01_L07
  
mov       [rbx+18],r13d
 
M01_L08
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        short M01_L13
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L09
  
test      rcx,rcx
 
je        short M01_L13
 
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        short M01_L13
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       r13d,[rax+r8]
 
cmp       r13d,[rcx+8]
 
ja        short M01_L12
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L16
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
je        short M01_L11
 
M01_L10
  
mov       [rbx+18],r13d
 
jmp       short M01_L13
 
M01_L11
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L10
 
M01_L12
  
mov       rcx,rbx
 
call      qword ptr [7FFD3202CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L13
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L06
 
M01_L14
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L15
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M01_L07
 
M01_L16
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L10
 
M01_L17
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFD3202CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M01_L08
 
M01_L18
  
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
jmp       near ptr M01_L07
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L09
 
M01_L20
  
mov       ecx,6
 
call      qword ptr [7FFD31F8ED00]
 
int       3
 
M01_L21
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L22
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinCharComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       dword ptr [rsp+30],2C
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
lea       r8,[rsp+30]
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
mov       r9d,1
 
call      qword ptr [7FFD327E64C0]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+80]
 
test      rbp,rbp
 
je        near ptr M01_L20
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L21
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L05
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L22
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L05
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L05
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L04
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
je        short M01_L02
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L05
 
M01_L02
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFD3203CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L05
 
M01_L04
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L05
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L14
 
M01_L06
  
test      esi,esi
 
je        short M01_L08
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        near ptr M01_L17
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        near ptr M01_L15
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
je        near ptr M01_L18
 
M01_L07
  
mov       [rbx+18],r13d
 
M01_L08
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        short M01_L13
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L09
  
test      rcx,rcx
 
je        short M01_L13
 
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        short M01_L13
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       r13d,[rax+r8]
 
cmp       r13d,[rcx+8]
 
ja        short M01_L12
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L16
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
je        short M01_L11
 
M01_L10
  
mov       [rbx+18],r13d
 
jmp       short M01_L13
 
M01_L11
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L10
 
M01_L12
  
mov       rcx,rbx
 
call      qword ptr [7FFD3203CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L13
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L06
 
M01_L14
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L15
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M01_L07
 
M01_L16
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L10
 
M01_L17
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFD3203CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M01_L08
 
M01_L18
  
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
jmp       near ptr M01_L07
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L09
 
M01_L20
  
mov       ecx,6
 
call      qword ptr [7FFD31F9ED00]
 
int       3
 
M01_L21
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L22
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinCharComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       dword ptr [rsp+30],2C
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
lea       r8,[rsp+30]
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
mov       r9d,1
 
call      qword ptr [7FFD327C7570]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+90]
 
test      rbp,rbp
 
je        near ptr M01_L21
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L22
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L07
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L23
 
M01_L00
  
test      rcx,rcx
 
je        near ptr M01_L07
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        near ptr M01_L07
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L06
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L04
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
je        short M01_L02
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L07
 
M01_L02
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L03
  
test      rcx,rcx
 
je        near ptr M01_L12
 
jmp       short M01_L05
 
M01_L04
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L05
  
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        near ptr M01_L12
 
mov       r13,[rbx+8]
 
mov       r12d,[rbx+18]
 
lea       eax,[r12+r8]
 
mov       [rsp+24],eax
 
cmp       eax,[r13+8]
 
ja        short M01_L11
 
jmp       near ptr M01_L16
 
M01_L06
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFD3201CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L07
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L19
 
M01_L08
  
test      esi,esi
 
je        short M01_L15
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        short M01_L14
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        short M01_L13
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
je        short M01_L10
 
M01_L09
  
mov       [rbx+18],r13d
 
jmp       short M01_L15
 
M01_L10
  
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L09
 
M01_L11
  
mov       rcx,rbx
 
call      qword ptr [7FFD3201CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L12
  
inc       r15d
 
cmp       r14d,r15d
 
jg        short M01_L08
 
jmp       short M01_L19
 
M01_L13
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L09
 
M01_L14
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFD3201CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L15
  
mov       eax,r15d
 
mov       rcx,[rbp+rax*8+10]
 
test      rcx,rcx
 
je        short M01_L12
 
mov       rax,offset MT_System.String
 
cmp       [rcx],rax
 
jne       near ptr M01_L24
 
jmp       near ptr M01_L03
 
M01_L16
  
movsxd    rcx,r12d
 
lea       rcx,[r13+rcx*2+10]
 
cmp       r8d,2
 
jg        short M01_L18
 
movzx     r10d,word ptr [rdx]
 
mov       [rcx],r10w
 
cmp       r8d,2
 
je        short M01_L20
 
M01_L17
  
mov       eax,[rsp+24]
 
mov       [rbx+18],eax
 
jmp       short M01_L12
 
M01_L18
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L17
 
M01_L19
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L20
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L17
 
M01_L21
  
mov       ecx,6
 
call      qword ptr [7FFD31F7ED00]
 
int       3
 
M01_L22
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L23
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 
M01_L24
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L03
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinCharComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       dword ptr [rsp+30],2C
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
lea       r8,[rsp+30]
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
mov       r9d,1
 
call      qword ptr [7FFD327D7570]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+80]
 
test      rbp,rbp
 
je        near ptr M01_L20
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L21
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L07
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L22
 
M01_L00
  
test      rcx,rcx
 
je        near ptr M01_L07
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L07
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L06
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L05
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
je        short M01_L02
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L07
 
M01_L02
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
call      qword ptr [7FFD3202CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
inc       r15d
 
cmp       r14d,r15d
 
jg        short M01_L08
 
jmp       near ptr M01_L18
 
M01_L05
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L06
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFD3202CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L07
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L18
 
M01_L08
  
test      esi,esi
 
je        short M01_L12
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        short M01_L11
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        short M01_L13
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
je        short M01_L10
 
M01_L09
  
mov       [rbx+18],r13d
 
jmp       short M01_L12
 
M01_L10
  
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L09
 
M01_L11
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFD3202CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L12
  
mov       eax,r15d
 
mov       rcx,[rbp+rax*8+10]
 
test      rcx,rcx
 
je        near ptr M01_L04
 
jmp       short M01_L14
 
M01_L13
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L09
 
M01_L14
  
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L23
 
M01_L15
  
test      rcx,rcx
 
je        near ptr M01_L04
 
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       r13d,[rax+r8]
 
cmp       r13d,[rcx+8]
 
ja        near ptr M01_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L17
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
je        short M01_L19
 
M01_L16
  
mov       [rbx+18],r13d
 
jmp       near ptr M01_L04
 
M01_L17
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L16
 
M01_L18
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L19
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L16
 
M01_L20
  
mov       ecx,6
 
call      qword ptr [7FFD31F8ED00]
 
int       3
 
M01_L21
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L22
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 
M01_L23
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L15
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinCharComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       dword ptr [rsp+30],2C
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
lea       r8,[rsp+30]
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
mov       r9d,1
 
call      qword ptr [7FFD327F7A98]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rbp,r8
 
mov       esi,r9d
 
mov       rdi,[rsp+90]
 
test      rdi,rdi
 
je        near ptr M01_L21
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
je        near ptr M01_L22
 
mov       rcx,[rdi+10]
 
test      rcx,rcx
 
je        near ptr M01_L07
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L23
 
M01_L00
  
test      rcx,rcx
 
je        near ptr M01_L07
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        near ptr M01_L07
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L06
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L04
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
je        short M01_L02
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L07
 
M01_L02
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L03
  
test      rcx,rcx
 
je        near ptr M01_L12
 
jmp       short M01_L05
 
M01_L04
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L05
  
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        near ptr M01_L12
 
mov       r13,[rbx+8]
 
mov       r12d,[rbx+18]
 
lea       eax,[r12+r8]
 
mov       [rsp+24],eax
 
cmp       eax,[r13+8]
 
ja        short M01_L11
 
jmp       near ptr M01_L16
 
M01_L06
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFD320AC2E8]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L07
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L19
 
M01_L08
  
test      esi,esi
 
je        short M01_L15
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        short M01_L14
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        short M01_L13
 
movzx     r8d,word ptr [rbp]
 
mov       [rcx],r8w
 
cmp       esi,2
 
je        short M01_L10
 
M01_L09
  
mov       [rbx+18],r13d
 
jmp       short M01_L15
 
M01_L10
  
movzx     r8d,word ptr [rbp+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L09
 
M01_L11
  
mov       rcx,rbx
 
call      qword ptr [7FFD320AC2E8]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L12
  
inc       r15d
 
cmp       r14d,r15d
 
jg        short M01_L08
 
jmp       short M01_L19
 
M01_L13
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rbp
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L09
 
M01_L14
  
mov       rcx,rbx
 
mov       rdx,rbp
 
mov       r8d,esi
 
call      qword ptr [7FFD320AC2E8]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L15
  
mov       eax,r15d
 
mov       rcx,[rdi+rax*8+10]
 
test      rcx,rcx
 
je        short M01_L12
 
mov       rax,offset MT_System.String
 
cmp       [rcx],rax
 
jne       near ptr M01_L24
 
jmp       near ptr M01_L03
 
M01_L16
  
movsxd    rcx,r12d
 
lea       rcx,[r13+rcx*2+10]
 
cmp       r8d,2
 
jg        short M01_L18
 
movzx     r10d,word ptr [rdx]
 
mov       [rcx],r10w
 
cmp       r8d,2
 
je        short M01_L20
 
M01_L17
  
mov       eax,[rsp+24]
 
mov       [rbx+18],eax
 
jmp       short M01_L12
 
M01_L18
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L17
 
M01_L19
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L20
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L17
 
M01_L21
  
mov       ecx,6
 
call      qword ptr [7FFD31FAED00]
 
int       3
 
M01_L22
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L23
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 
M01_L24
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L03
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinCharComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       dword ptr [rsp+30],2C
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
lea       r8,[rsp+30]
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
mov       r9d,1
 
call      qword ptr [7FFD327C7A98]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+80]
 
test      rbp,rbp
 
je        near ptr M01_L20
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L21
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L05
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L22
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L05
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L05
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L04
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
je        short M01_L02
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L05
 
M01_L02
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFD3201CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L05
 
M01_L04
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L05
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L14
 
M01_L06
  
test      esi,esi
 
je        short M01_L08
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        near ptr M01_L17
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        near ptr M01_L15
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
je        near ptr M01_L18
 
M01_L07
  
mov       [rbx+18],r13d
 
M01_L08
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        short M01_L13
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L09
  
test      rcx,rcx
 
je        short M01_L13
 
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        short M01_L13
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       r13d,[rax+r8]
 
cmp       r13d,[rcx+8]
 
ja        short M01_L12
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L16
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
je        short M01_L11
 
M01_L10
  
mov       [rbx+18],r13d
 
jmp       short M01_L13
 
M01_L11
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L10
 
M01_L12
  
mov       rcx,rbx
 
call      qword ptr [7FFD3201CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L13
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L06
 
M01_L14
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L15
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M01_L07
 
M01_L16
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L10
 
M01_L17
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFD3201CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M01_L08
 
M01_L18
  
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
jmp       near ptr M01_L07
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L09
 
M01_L20
  
mov       ecx,6
 
call      qword ptr [7FFD31F7ED00]
 
int       3
 
M01_L21
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L22
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinStringComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
mov       r8,27A3EF99084
 
mov       r9d,2
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
call      qword ptr [7FFD327F64C0]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+90]
 
test      rbp,rbp
 
je        near ptr M01_L17
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L18
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L06
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L00
  
test      rcx,rcx
 
je        near ptr M01_L06
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        near ptr M01_L06
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        near ptr M01_L05
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L02
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       near ptr M01_L06
 
M01_L02
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L03
  
test      rcx,rcx
 
je        near ptr M01_L11
 
lea       rdx,[rcx+0C]
 
mov       r13d,[rcx+8]
 
test      r13d,r13d
 
je        near ptr M01_L11
 
mov       r8,[rbx+8]
 
mov       r12d,[rbx+18]
 
lea       ecx,[r12+r13]
 
cmp       ecx,[r8+8]
 
ja        near ptr M01_L10
 
movsxd    rcx,r12d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r13d,2
 
jg        near ptr M01_L14
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r13d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M01_L04
  
add       r13d,r12d
 
mov       [rbx+18],r13d
 
jmp       near ptr M01_L11
 
M01_L05
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFD3204CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       r15d,1
 
cmp       r14d,1
 
jle       short M01_L12
 
M01_L07
  
test      esi,esi
 
je        short M01_L09
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[rsi+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L13
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        near ptr M01_L15
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
jne       short M01_L08
 
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
M01_L08
  
add       r13d,esi
 
mov       [rbx+18],r13d
 
M01_L09
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        short M01_L11
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       short M01_L16
 
jmp       near ptr M01_L03
 
M01_L10
  
mov       rcx,rbx
 
mov       r8d,r13d
 
call      qword ptr [7FFD3204CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L11
  
inc       r15d
 
cmp       r14d,r15d
 
jg        short M01_L07
 
M01_L12
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L13
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFD3204CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L09
 
M01_L14
  
movsxd    r8,r13d
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M01_L04
 
M01_L15
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M01_L08
 
M01_L16
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L03
 
M01_L17
  
mov       ecx,6
 
call      qword ptr [7FFD31FAED00]
 
int       3
 
M01_L18
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinStringComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
mov       r8,233EF5A9084
 
mov       r9d,2
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
call      qword ptr [7FFD327E64C0]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+90]
 
test      rbp,rbp
 
je        near ptr M01_L16
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L17
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L04
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L18
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L04
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L04
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L01
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M01_L02
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L02
 
M01_L01
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L02
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L04
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFD3203CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L15
 
M01_L05
  
test      esi,esi
 
je        short M01_L09
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[rsi+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L08
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        short M01_L06
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
jne       short M01_L07
 
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L07
 
M01_L06
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L07
  
add       r13d,esi
 
mov       [rbx+18],r13d
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFD3203CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        near ptr M01_L14
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L10
  
test      rcx,rcx
 
je        short M01_L14
 
lea       rdx,[rcx+0C]
 
mov       r13d,[rcx+8]
 
test      r13d,r13d
 
je        short M01_L14
 
mov       r8,[rbx+8]
 
mov       r12d,[rbx+18]
 
lea       ecx,[r12+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L13
 
movsxd    rcx,r12d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r13d,2
 
jg        short M01_L11
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r13d,2
 
jne       short M01_L12
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L12
 
M01_L11
  
movsxd    r8,r13d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L12
  
add       r13d,r12d
 
mov       [rbx+18],r13d
 
jmp       short M01_L14
 
M01_L13
  
mov       rcx,rbx
 
mov       r8d,r13d
 
call      qword ptr [7FFD3203CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L14
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L05
 
M01_L15
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L16
  
mov       ecx,6
 
call      qword ptr [7FFD31F9ED00]
 
int       3
 
M01_L17
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L18
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L10
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinStringComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
mov       r8,2DEBB5D9084
 
mov       r9d,2
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
call      qword ptr [7FFD327E64C0]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+80]
 
test      rbp,rbp
 
je        near ptr M01_L16
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L17
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L04
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L18
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L04
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L04
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L01
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M01_L02
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L02
 
M01_L01
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L02
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L04
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFD3203CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L15
 
M01_L05
  
test      esi,esi
 
je        short M01_L09
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        short M01_L08
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        short M01_L06
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
jne       short M01_L07
 
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L07
 
M01_L06
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L07
  
mov       [rbx+18],r13d
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFD3203CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        short M01_L14
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L10
  
test      rcx,rcx
 
je        short M01_L14
 
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        short M01_L14
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       r13d,[rax+r8]
 
cmp       r13d,[rcx+8]
 
ja        short M01_L13
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L11
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L12
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L12
 
M01_L11
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L12
  
mov       [rbx+18],r13d
 
jmp       short M01_L14
 
M01_L13
  
mov       rcx,rbx
 
call      qword ptr [7FFD3203CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L14
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L05
 
M01_L15
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L16
  
mov       ecx,6
 
call      qword ptr [7FFD31F9ED00]
 
int       3
 
M01_L17
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L18
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L10
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinStringComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
mov       r8,25815CE9084
 
mov       r9d,2
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
call      qword ptr [7FFD327E6340]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+80]
 
test      rbp,rbp
 
je        near ptr M01_L16
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L17
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L04
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L18
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L04
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L04
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L02
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L04
 
M01_L02
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFD3203CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L15
 
M01_L05
  
test      esi,esi
 
je        short M01_L07
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        near ptr M01_L13
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        near ptr M01_L10
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
jne       short M01_L06
 
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
M01_L06
  
mov       [rbx+18],r13d
 
M01_L07
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        near ptr M01_L12
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L08
  
test      rcx,rcx
 
je        short M01_L12
 
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        short M01_L12
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       r13d,[rax+r8]
 
cmp       r13d,[rcx+8]
 
ja        short M01_L11
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L14
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L09
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M01_L09
  
mov       [rbx+18],r13d
 
jmp       short M01_L12
 
M01_L10
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M01_L06
 
M01_L11
  
mov       rcx,rbx
 
call      qword ptr [7FFD3203CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L12
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L05
 
jmp       short M01_L15
 
M01_L13
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFD3203CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M01_L07
 
M01_L14
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L09
 
M01_L15
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L16
  
mov       ecx,6
 
call      qword ptr [7FFD31F9ED00]
 
int       3
 
M01_L17
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L18
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L08
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinStringComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
mov       r8,2713F819084
 
mov       r9d,2
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
call      qword ptr [7FFD327F7A98]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+80]
 
test      rbp,rbp
 
je        near ptr M01_L16
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L17
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L04
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L18
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L04
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L04
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L01
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M01_L02
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L02
 
M01_L01
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L02
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L04
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFD3204CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L15
 
M01_L05
  
test      esi,esi
 
je        short M01_L09
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        short M01_L08
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        short M01_L06
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
jne       short M01_L07
 
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L07
 
M01_L06
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L07
  
mov       [rbx+18],r13d
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFD3204CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        short M01_L14
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L10
  
test      rcx,rcx
 
je        short M01_L14
 
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        short M01_L14
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       r13d,[rax+r8]
 
cmp       r13d,[rcx+8]
 
ja        short M01_L13
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L11
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L12
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L12
 
M01_L11
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L12
  
mov       [rbx+18],r13d
 
jmp       short M01_L14
 
M01_L13
  
mov       rcx,rbx
 
call      qword ptr [7FFD3204CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L14
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L05
 
M01_L15
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L16
  
mov       ecx,6
 
call      qword ptr [7FFD31FAED00]
 
int       3
 
M01_L17
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L18
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L10
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinStringComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
mov       r8,1F3D2DF9084
 
mov       r9d,2
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
call      qword ptr [7FFD327F7570]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+80]
 
test      rbp,rbp
 
je        near ptr M01_L16
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L17
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L04
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L18
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L04
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L04
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L02
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L04
 
M01_L02
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFD3204CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L15
 
M01_L05
  
test      esi,esi
 
je        short M01_L07
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        near ptr M01_L13
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        near ptr M01_L10
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
jne       short M01_L06
 
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
M01_L06
  
mov       [rbx+18],r13d
 
M01_L07
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        near ptr M01_L12
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L08
  
test      rcx,rcx
 
je        short M01_L12
 
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        short M01_L12
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       r13d,[rax+r8]
 
cmp       r13d,[rcx+8]
 
ja        short M01_L11
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L14
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L09
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M01_L09
  
mov       [rbx+18],r13d
 
jmp       short M01_L12
 
M01_L10
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M01_L06
 
M01_L11
  
mov       rcx,rbx
 
call      qword ptr [7FFD3204CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L12
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L05
 
jmp       short M01_L15
 
M01_L13
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFD3204CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M01_L07
 
M01_L14
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L09
 
M01_L15
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L16
  
mov       ecx,6
 
call      qword ptr [7FFD31FAED00]
 
int       3
 
M01_L17
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L18
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L08
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinStringComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
mov       r8,27F653A9084
 
mov       r9d,2
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
call      qword ptr [7FFD327C7570]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+80]
 
test      rbp,rbp
 
je        near ptr M01_L16
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L17
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L04
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L18
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L04
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L04
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L01
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M01_L02
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L02
 
M01_L01
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L02
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L04
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFD3201CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L15
 
M01_L05
  
test      esi,esi
 
je        short M01_L09
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        short M01_L08
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        short M01_L06
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
jne       short M01_L07
 
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L07
 
M01_L06
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L07
  
mov       [rbx+18],r13d
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFD3201CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        short M01_L14
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L10
  
test      rcx,rcx
 
je        short M01_L14
 
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        short M01_L14
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       r13d,[rax+r8]
 
cmp       r13d,[rcx+8]
 
ja        short M01_L13
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L11
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L12
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L12
 
M01_L11
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L12
  
mov       [rbx+18],r13d
 
jmp       short M01_L14
 
M01_L13
  
mov       rcx,rbx
 
call      qword ptr [7FFD3201CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L14
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L05
 
M01_L15
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L16
  
mov       ecx,6
 
call      qword ptr [7FFD31F7ED00]
 
int       3
 
M01_L17
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L18
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L10
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinStringComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
mov       r8,249CDA59084
 
mov       r9d,2
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
call      qword ptr [7FFD327E78A0]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+80]
 
test      rbp,rbp
 
je        near ptr M01_L16
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L17
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L04
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L18
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L04
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L04
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L01
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M01_L02
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L02
 
M01_L01
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L02
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L04
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFD3203CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L15
 
M01_L05
  
test      esi,esi
 
je        short M01_L09
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        short M01_L08
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        short M01_L06
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
jne       short M01_L07
 
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L07
 
M01_L06
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L07
  
mov       [rbx+18],r13d
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFD3203CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        short M01_L14
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L10
  
test      rcx,rcx
 
je        short M01_L14
 
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        short M01_L14
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       r13d,[rax+r8]
 
cmp       r13d,[rcx+8]
 
ja        short M01_L13
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L11
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L12
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L12
 
M01_L11
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L12
  
mov       [rbx+18],r13d
 
jmp       short M01_L14
 
M01_L13
  
mov       rcx,rbx
 
call      qword ptr [7FFD3203CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L14
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L05
 
M01_L15
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L16
  
mov       ecx,6
 
call      qword ptr [7FFD31F9ED00]
 
int       3
 
M01_L17
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L18
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L10
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       r8,[rbx+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       r8,[rbx+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M00_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M00_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFD3204CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFD3203EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M01_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M01_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M01_L02
 
test      r8b,18
 
je        short M01_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M01_L00
  
ret
 
M01_L01
  
test      r8b,4
 
je        short M01_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M01_L00
 
M01_L02
  
cmp       r8,40
 
ja        short M01_L06
 
M01_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M01_L10
 
M01_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M01_L00
 
M01_L05
  
test      r8,r8
 
je        short M01_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M01_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M01_L00
 
M01_L06
  
cmp       r8,800
 
ja        short M01_L09
 
mov       r9,r8
 
shr       r9,6
 
M01_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M01_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M01_L03
 
jmp       short M01_L04
 
M01_L08
  
cmp       rcx,rdx
 
je        near ptr M01_L00
 
M01_L09
  
jmp       qword ptr [7FFD31E65B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M01_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M01_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M02_L03
 
cmp       r8d,edi
 
jl        near ptr M02_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M02_L01
 
test      r8,r8
 
je        near ptr M02_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M02_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M02_L00
  
cmp       ebp,r10d
 
ja        near ptr M02_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M02_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFD3204CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M02_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M02_L07
 
M02_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M02_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C64000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322FF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E6D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M02_L04
  
test      eax,eax
 
jne       short M02_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M02_L00
 
M02_L05
  
call      qword ptr [7FFD31FAE9D0]
 
int       3
 
M02_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M02_L02
 
M02_L07
  
call      qword ptr [7FFD31FAE9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C64000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322FF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E6D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,27A30F60008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       r8,[rbx+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       r8,[rbx+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M00_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M00_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFD3203CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFD3202EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M01_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M01_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M01_L03
 
test      r8b,18
 
jne       short M01_L01
 
test      r8b,4
 
je        short M01_L00
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M01_L02
 
M01_L00
  
test      r8,r8
 
je        short M01_L02
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M01_L02
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M01_L02
 
M01_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M01_L02
  
ret
 
M01_L03
  
cmp       r8,40
 
ja        short M01_L06
 
M01_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M01_L10
 
M01_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M01_L02
 
M01_L06
  
cmp       r8,800
 
ja        short M01_L09
 
mov       r9,r8
 
shr       r9,6
 
M01_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M01_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M01_L04
 
jmp       short M01_L05
 
M01_L08
  
cmp       rcx,rdx
 
je        short M01_L02
 
M01_L09
  
jmp       qword ptr [7FFD31E55B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M01_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M01_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M02_L03
 
cmp       r8d,edi
 
jl        near ptr M02_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M02_L01
 
test      r8,r8
 
je        near ptr M02_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M02_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M02_L00
  
cmp       ebp,r10d
 
ja        near ptr M02_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M02_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFD3203CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M02_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M02_L07
 
M02_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M02_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C54000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322EF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E5D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M02_L04
  
test      eax,eax
 
jne       short M02_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M02_L00
 
M02_L05
  
call      qword ptr [7FFD31F9E9D0]
 
int       3
 
M02_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M02_L02
 
M02_L07
  
call      qword ptr [7FFD31F9E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C54000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322EF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E5D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,1C9FEEA0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       r8,[rbx+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       r8,[rbx+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M00_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M00_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFD3204CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFD3203EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M01_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M01_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M01_L02
 
test      r8b,18
 
je        short M01_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M01_L00
  
ret
 
M01_L01
  
test      r8b,4
 
je        short M01_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M01_L00
 
M01_L02
  
cmp       r8,40
 
ja        short M01_L06
 
M01_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M01_L10
 
M01_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M01_L00
 
M01_L05
  
test      r8,r8
 
je        short M01_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M01_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M01_L00
 
M01_L06
  
cmp       r8,800
 
ja        short M01_L09
 
mov       r9,r8
 
shr       r9,6
 
M01_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M01_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M01_L03
 
jmp       short M01_L04
 
M01_L08
  
cmp       rcx,rdx
 
je        near ptr M01_L00
 
M01_L09
  
jmp       qword ptr [7FFD31E65B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M01_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M01_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M02_L03
 
cmp       r8d,edi
 
jl        near ptr M02_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M02_L01
 
test      r8,r8
 
je        near ptr M02_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M02_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M02_L00
  
cmp       ebp,r10d
 
ja        near ptr M02_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M02_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFD3204CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M02_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M02_L07
 
M02_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M02_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C64000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322FF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E6D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M02_L04
  
test      eax,eax
 
jne       short M02_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M02_L00
 
M02_L05
  
call      qword ptr [7FFD31FAE9D0]
 
int       3
 
M02_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M02_L02
 
M02_L07
  
call      qword ptr [7FFD31FAE9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C64000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322FF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E6D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,1825FB00008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       r8,[rbx+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       r8,[rbx+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M00_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M00_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFD3203CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFD3202EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M01_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M01_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M01_L02
 
test      r8b,18
 
je        short M01_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M01_L00
  
ret
 
M01_L01
  
test      r8b,4
 
je        short M01_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M01_L00
 
M01_L02
  
cmp       r8,40
 
ja        short M01_L06
 
M01_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M01_L10
 
M01_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M01_L00
 
M01_L05
  
test      r8,r8
 
je        short M01_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M01_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M01_L00
 
M01_L06
  
cmp       r8,800
 
ja        short M01_L09
 
mov       r9,r8
 
shr       r9,6
 
M01_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M01_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M01_L03
 
jmp       short M01_L04
 
M01_L08
  
cmp       rcx,rdx
 
je        near ptr M01_L00
 
M01_L09
  
jmp       qword ptr [7FFD31E55B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M01_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M01_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M02_L03
 
cmp       r8d,edi
 
jl        near ptr M02_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M02_L01
 
test      r8,r8
 
je        near ptr M02_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M02_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M02_L00
  
cmp       ebp,r10d
 
ja        near ptr M02_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M02_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFD3203CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M02_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M02_L07
 
M02_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M02_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C54000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322EF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E5D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M02_L04
  
test      eax,eax
 
jne       short M02_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M02_L00
 
M02_L05
  
call      qword ptr [7FFD31F9E9D0]
 
int       3
 
M02_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M02_L02
 
M02_L07
  
call      qword ptr [7FFD31F9E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C54000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322EF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E5D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,18064B90008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       r8,[rbx+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       r8,[rbx+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M00_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M00_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFD3201CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFD3200EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M01_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M01_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M01_L03
 
test      r8b,18
 
jne       short M01_L01
 
test      r8b,4
 
je        short M01_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M01_L00
  
ret
 
M01_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M01_L00
 
M01_L02
  
test      r8,r8
 
je        short M01_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M01_L06
 
jmp       short M01_L00
 
M01_L03
  
cmp       r8,40
 
ja        short M01_L07
 
M01_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M01_L11
 
M01_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M01_L00
 
M01_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M01_L00
 
M01_L07
  
cmp       r8,800
 
ja        short M01_L10
 
mov       r9,r8
 
shr       r9,6
 
M01_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M01_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M01_L04
 
jmp       short M01_L05
 
M01_L09
  
cmp       rcx,rdx
 
je        near ptr M01_L00
 
M01_L10
  
jmp       qword ptr [7FFD31E35B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M01_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M01_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M02_L03
 
cmp       r8d,edi
 
jl        near ptr M02_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M02_L01
 
test      r8,r8
 
je        near ptr M02_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M02_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M02_L00
  
cmp       ebp,r10d
 
ja        near ptr M02_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M02_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFD3201CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M02_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M02_L07
 
M02_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M02_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C34000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322CF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E3D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M02_L04
  
test      eax,eax
 
jne       short M02_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M02_L00
 
M02_L05
  
call      qword ptr [7FFD31F7E9D0]
 
int       3
 
M02_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M02_L02
 
M02_L07
  
call      qword ptr [7FFD31F7E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C34000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322CF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E3D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,1E609ED0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       r8,[rbx+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       r8,[rbx+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M00_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M00_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFD3202CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFD3201EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M01_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M01_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M01_L02
 
test      r8b,18
 
je        short M01_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M01_L00
  
ret
 
M01_L01
  
test      r8b,4
 
je        short M01_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M01_L00
 
M01_L02
  
cmp       r8,40
 
ja        short M01_L06
 
M01_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M01_L10
 
M01_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M01_L00
 
M01_L05
  
test      r8,r8
 
je        short M01_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M01_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M01_L00
 
M01_L06
  
cmp       r8,800
 
ja        short M01_L09
 
mov       r9,r8
 
shr       r9,6
 
M01_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M01_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M01_L03
 
jmp       short M01_L04
 
M01_L08
  
cmp       rcx,rdx
 
je        near ptr M01_L00
 
M01_L09
  
jmp       qword ptr [7FFD31E45B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M01_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M01_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M02_L03
 
cmp       r8d,edi
 
jl        near ptr M02_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M02_L01
 
test      r8,r8
 
je        near ptr M02_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M02_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M02_L00
  
cmp       ebp,r10d
 
ja        near ptr M02_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M02_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFD3202CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M02_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M02_L07
 
M02_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M02_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C44000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322DF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E4D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M02_L04
  
test      eax,eax
 
jne       short M02_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M02_L00
 
M02_L05
  
call      qword ptr [7FFD31F8E9D0]
 
int       3
 
M02_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M02_L02
 
M02_L07
  
call      qword ptr [7FFD31F8E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C44000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322DF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E4D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,1518D1A0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       r8,[rbx+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       r8,[rbx+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M00_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M00_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFD3202CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFD3201EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M01_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M01_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M01_L03
 
test      r8b,18
 
jne       short M01_L01
 
test      r8b,4
 
je        short M01_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M01_L00
  
ret
 
M01_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M01_L00
 
M01_L02
  
test      r8,r8
 
je        short M01_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M01_L06
 
jmp       short M01_L00
 
M01_L03
  
cmp       r8,40
 
ja        short M01_L07
 
M01_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M01_L11
 
M01_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M01_L00
 
M01_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M01_L00
 
M01_L07
  
cmp       r8,800
 
ja        short M01_L10
 
mov       r9,r8
 
shr       r9,6
 
M01_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M01_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M01_L04
 
jmp       short M01_L05
 
M01_L09
  
cmp       rcx,rdx
 
je        near ptr M01_L00
 
M01_L10
  
jmp       qword ptr [7FFD31E45B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M01_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M01_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M02_L03
 
cmp       r8d,edi
 
jl        near ptr M02_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M02_L01
 
test      r8,r8
 
je        near ptr M02_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M02_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M02_L00
  
cmp       ebp,r10d
 
ja        near ptr M02_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M02_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFD3202CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M02_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M02_L07
 
M02_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M02_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C44000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322DF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E4D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M02_L04
  
test      eax,eax
 
jne       short M02_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M02_L00
 
M02_L05
  
call      qword ptr [7FFD31F8E9D0]
 
int       3
 
M02_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M02_L02
 
M02_L07
  
call      qword ptr [7FFD31F8E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C44000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322DF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E4D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,2C2E89B0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       r8,[rbx+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       r8,[rbx+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M00_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M00_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFD3201CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFD3200EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M01_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M01_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M01_L02
 
test      r8b,18
 
je        short M01_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M01_L00
  
ret
 
M01_L01
  
test      r8b,4
 
je        short M01_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M01_L00
 
M01_L02
  
cmp       r8,40
 
ja        short M01_L06
 
M01_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M01_L10
 
M01_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M01_L00
 
M01_L05
  
test      r8,r8
 
je        short M01_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M01_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M01_L00
 
M01_L06
  
cmp       r8,800
 
ja        short M01_L09
 
mov       r9,r8
 
shr       r9,6
 
M01_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M01_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M01_L03
 
jmp       short M01_L04
 
M01_L08
  
cmp       rcx,rdx
 
je        near ptr M01_L00
 
M01_L09
  
jmp       qword ptr [7FFD31E35B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M01_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M01_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M02_L03
 
cmp       r8d,edi
 
jl        near ptr M02_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M02_L01
 
test      r8,r8
 
je        near ptr M02_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M02_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M02_L00
  
cmp       ebp,r10d
 
ja        near ptr M02_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M02_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFD3201CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M02_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M02_L07
 
M02_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M02_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C34000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322CF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E3D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M02_L04
  
test      eax,eax
 
jne       short M02_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M02_L00
 
M02_L05
  
call      qword ptr [7FFD31F7E9D0]
 
int       3
 
M02_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M02_L02
 
M02_L07
  
call      qword ptr [7FFD31F7E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C34000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322CF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E3D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,280B2E80008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionStringBuilderPool()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,21912406168
 
mov       rsi,[rcx]
 
mov       rcx,rsi
 
call      qword ptr [7FFD3250E560]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
 
mov       rdi,rax
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rbp+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
mov       [rbp+18],rcx
 
mov       [rsp+30],rbp
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFD327D60B8]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       rbp,rax
 
mov       rcx,rsi
 
mov       rdx,rdi
 
call      qword ptr [7FFD324FE9A0]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
 
mov       [rsp+28],rbp
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L00
  
call      qword ptr [7FFD31D941F8]
 
int       3
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rcx,[rbx+20]
 
mov       [rsp+20],rcx
 
cmp       qword ptr [rsp+20],0
 
je        short M01_L01
 
lea       rcx,[rbx+20]
 
mov       r8,[rbx]
 
mov       r8,[r8+30]
 
mov       r8,[r8+8]
 
cmp       qword ptr [r8+8],30
 
jle       short M01_L00
 
M01_L00
  
mov       r8,[rsp+20]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rsp+20]
 
jne       short M01_L01
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L01
  
mov       rcx,[rbx+18]
 
lea       rdx,[rsp+20]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD324FEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L02
 
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L02
  
mov       rax,[rbx+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
nop
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L05
 
M02_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M02_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M02_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L04
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M02_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L01
  
mov       [rbx+18],ebp
 
jmp       short M02_L04
 
M02_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L01
 
M02_L03
  
mov       rcx,rbx
 
call      qword ptr [7FFD3202CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M02_L04
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        near ptr M02_L00
 
M02_L05
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M02_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+70]
 
xor       eax,eax
 
mov       [rbp-40],rax
 
mov       [rbp-30],rax
 
mov       [rbp-50],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M03_L10
 
mov       rcx,21912406B10
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-30],rcx
 
cmp       qword ptr [rbp-30],0
 
je        near ptr M03_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-30]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-30]
 
jne       near ptr M03_L11
 
M03_L00
  
mov       rdi,[rbp-30]
 
M03_L01
  
xor       ecx,ecx
 
mov       [rbp-30],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFD3202C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-38],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M03_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M03_L09
 
M03_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M03_L04
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M03_L07
 
lea       rdx,[r8+0C]
 
mov       r14d,[r8+8]
 
test      r14d,r14d
 
je        short M03_L07
 
mov       r8,[rdi+8]
 
mov       r15d,[rdi+18]
 
lea       ecx,[r15+r14]
 
cmp       ecx,[r8+8]
 
ja        short M03_L06
 
movsxd    rcx,r15d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r14d,2
 
jle       short M03_L05
 
movsxd    r8,r14d
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L03
  
add       r14d,r15d
 
mov       [rdi+18],r14d
 
jmp       short M03_L07
 
M03_L04
  
call      CORINFO_HELP_RNGCHKFAIL
 
M03_L05
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r14d,2
 
jne       short M03_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M03_L03
 
M03_L06
  
mov       rcx,rdi
 
mov       r8d,r14d
 
call      qword ptr [7FFD3202CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M03_L07
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        near ptr M03_L02
 
jmp       short M03_L09
 
M03_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M03_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFD3201EB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-40],rax
 
mov       rcx,rsp
 
call      M03_L13
 
nop
 
mov       rax,[rbp-40]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M03_L10
  
mov       rax,2599E320008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M03_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-30]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD324FEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M03_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M03_L00
 
M03_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M03_L01
 
M03_L13
  
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+70]
 
mov       rcx,21912406B10
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M03_L14
 
mov       rdi,[rbp-38]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M03_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFD3202C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M03_L15
 
M03_L14
  
mov       rdi,[rbp-38]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M03_L18
 
M03_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M03_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M03_L18
 
M03_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M03_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD324FEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M03_L18
 
M03_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M03_L18
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rdi+18],rcx
 
jne       short M04_L03
 
mov       rcx,[rsi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rsi+1C]
 
mov       rdx,[rdi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M04_L04
 
mov       rcx,rsi
 
xor       edx,edx
 
call      qword ptr [7FFD3202C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
M04_L00
  
cmp       qword ptr [rbx+20],0
 
jne       short M04_L05
 
lea       rcx,[rbx+20]
 
mov       rdx,[rbx]
 
mov       rdx,[rdx+30]
 
mov       rdx,[rdx+8]
 
cmp       qword ptr [rdx+8],30
 
jle       short M04_L01
 
M04_L01
  
mov       rdx,rsi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
jne       short M04_L05
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L02
  
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L03
  
mov       rdx,rsi
 
mov       rcx,[rdi+8]
 
call      qword ptr [rdi+18]
 
test      eax,eax
 
jne       short M04_L00
 
M04_L04
  
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L05
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M04_L02
 
mov       rcx,[rbx+18]
 
mov       rdx,rsi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD324FEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionStringBuilderPool()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,1D6CF006168
 
mov       rsi,[rcx]
 
mov       rcx,rsi
 
call      qword ptr [7FFD3251E560]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
 
mov       rdi,rax
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rbp+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
mov       [rbp+18],rcx
 
mov       [rsp+30],rbp
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFD327E6568]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       rbp,rax
 
mov       rcx,rsi
 
mov       rdx,rdi
 
call      qword ptr [7FFD3250E9A0]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
 
mov       [rsp+28],rbp
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L00
  
call      qword ptr [7FFD31DA41F8]
 
int       3
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rcx,[rbx+20]
 
mov       [rsp+20],rcx
 
cmp       qword ptr [rsp+20],0
 
je        short M01_L01
 
lea       rcx,[rbx+20]
 
mov       r8,[rbx]
 
mov       r8,[r8+30]
 
mov       r8,[r8+8]
 
cmp       qword ptr [r8+8],30
 
jle       short M01_L00
 
M01_L00
  
mov       r8,[rsp+20]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rsp+20]
 
jne       short M01_L01
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L01
  
mov       rcx,[rbx+18]
 
lea       rdx,[rsp+20]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD3250EF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L02
 
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L02
  
mov       rax,[rbx+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
nop
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L05
 
M02_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M02_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M02_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L04
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M02_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L01
  
mov       [rbx+18],ebp
 
jmp       short M02_L04
 
M02_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L01
 
M02_L03
  
mov       rcx,rbx
 
call      qword ptr [7FFD3203CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M02_L04
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        near ptr M02_L00
 
M02_L05
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M02_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M03_L10
 
mov       rcx,1D6CF006B10
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M03_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M03_L11
 
M03_L00
  
mov       rdi,[rbp-28]
 
M03_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFD3203C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M03_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M03_L09
 
M03_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M03_L04
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M03_L07
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M03_L07
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M03_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M03_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L03
  
mov       [rdi+18],r14d
 
jmp       short M03_L07
 
M03_L04
  
call      CORINFO_HELP_RNGCHKFAIL
 
M03_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M03_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M03_L03
 
M03_L06
  
mov       rcx,rdi
 
call      qword ptr [7FFD3203CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M03_L07
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        near ptr M03_L02
 
jmp       short M03_L09
 
M03_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M03_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFD3202EB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M03_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L10
  
mov       rax,21760F00008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD3250EF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M03_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M03_L00
 
M03_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M03_L01
 
M03_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,1D6CF006B10
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M03_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M03_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFD3203C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M03_L15
 
M03_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M03_L18
 
M03_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M03_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M03_L18
 
M03_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M03_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD3250EEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M03_L18
 
M03_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M03_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rdi+18],rcx
 
jne       short M04_L03
 
mov       rcx,[rsi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rsi+1C]
 
mov       rdx,[rdi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M04_L04
 
mov       rcx,rsi
 
xor       edx,edx
 
call      qword ptr [7FFD3203C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
M04_L00
  
cmp       qword ptr [rbx+20],0
 
jne       short M04_L05
 
lea       rcx,[rbx+20]
 
mov       rdx,[rbx]
 
mov       rdx,[rdx+30]
 
mov       rdx,[rdx+8]
 
cmp       qword ptr [rdx+8],30
 
jle       short M04_L01
 
M04_L01
  
mov       rdx,rsi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
jne       short M04_L05
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L02
  
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L03
  
mov       rdx,rsi
 
mov       rcx,[rdi+8]
 
call      qword ptr [rdi+18]
 
test      eax,eax
 
jne       short M04_L00
 
M04_L04
  
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L05
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M04_L02
 
mov       rcx,[rbx+18]
 
mov       rdx,rsi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD3250EEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionStringBuilderPool()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,147FBC08160
 
mov       rsi,[rcx]
 
mov       rcx,rsi
 
call      qword ptr [7FFD3250E560]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
 
mov       rdi,rax
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rbp+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
mov       [rbp+18],rcx
 
mov       [rsp+30],rbp
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFD327D60B8]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       rbp,rax
 
mov       rcx,rsi
 
mov       rdx,rdi
 
call      qword ptr [7FFD324FE9A0]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
 
mov       [rsp+28],rbp
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L00
  
call      qword ptr [7FFD31D941F8]
 
int       3
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rcx,[rbx+20]
 
mov       [rsp+20],rcx
 
cmp       qword ptr [rsp+20],0
 
je        short M01_L01
 
lea       rcx,[rbx+20]
 
mov       r8,[rbx]
 
mov       r8,[r8+30]
 
mov       r8,[r8+8]
 
cmp       qword ptr [r8+8],30
 
jle       short M01_L00
 
M01_L00
  
mov       r8,[rsp+20]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rsp+20]
 
jne       short M01_L01
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L01
  
mov       rcx,[rbx+18]
 
lea       rdx,[rsp+20]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD324FEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L02
 
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L02
  
mov       rax,[rbx+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
nop
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L05
 
M02_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M02_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M02_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L04
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M02_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L01
  
mov       [rbx+18],ebp
 
jmp       short M02_L04
 
M02_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L01
 
M02_L03
  
mov       rcx,rbx
 
call      qword ptr [7FFD3202CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M02_L04
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        near ptr M02_L00
 
M02_L05
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M02_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M03_L10
 
mov       rcx,147FBC08B08
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M03_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M03_L11
 
M03_L00
  
mov       rdi,[rbp-28]
 
M03_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFD3202C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M03_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M03_L09
 
M03_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M03_L05
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M03_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M03_L04
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M03_L07
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M03_L06
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L03
  
mov       [rdi+18],r14d
 
M03_L04
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        short M03_L02
 
jmp       short M03_L09
 
M03_L05
  
call      CORINFO_HELP_RNGCHKFAIL
 
M03_L06
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M03_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M03_L03
 
M03_L07
  
mov       rcx,rdi
 
call      qword ptr [7FFD3202CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M03_L04
 
M03_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M03_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFD3201EB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M03_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L10
  
mov       rax,1888DBD0008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD324FEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M03_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M03_L00
 
M03_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M03_L01
 
M03_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,147FBC08B08
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M03_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M03_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFD3202C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M03_L15
 
M03_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M03_L18
 
M03_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M03_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M03_L18
 
M03_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M03_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD324FEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M03_L18
 
M03_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M03_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rdi+18],rcx
 
jne       short M04_L03
 
mov       rcx,[rsi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rsi+1C]
 
mov       rdx,[rdi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M04_L04
 
mov       rcx,rsi
 
xor       edx,edx
 
call      qword ptr [7FFD3202C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
M04_L00
  
cmp       qword ptr [rbx+20],0
 
jne       short M04_L05
 
lea       rcx,[rbx+20]
 
mov       rdx,[rbx]
 
mov       rdx,[rdx+30]
 
mov       rdx,[rdx+8]
 
cmp       qword ptr [rdx+8],30
 
jle       short M04_L01
 
M04_L01
  
mov       rdx,rsi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
jne       short M04_L05
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L02
  
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L03
  
mov       rdx,rsi
 
mov       rcx,[rdi+8]
 
call      qword ptr [rdi+18]
 
test      eax,eax
 
jne       short M04_L00
 
M04_L04
  
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L05
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M04_L02
 
mov       rcx,[rbx+18]
 
mov       rdx,rsi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD324FEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionStringBuilderPool()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,25151006168
 
mov       rsi,[rcx]
 
mov       rcx,rsi
 
call      qword ptr [7FFD3251E560]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
 
mov       rdi,rax
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rbp+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
mov       [rbp+18],rcx
 
mov       [rsp+30],rbp
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFD327E60B8]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       rbp,rax
 
mov       rcx,rsi
 
mov       rdx,rdi
 
call      qword ptr [7FFD3250E9A0]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
 
mov       [rsp+28],rbp
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L00
  
call      qword ptr [7FFD31DA41F8]
 
int       3
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rcx,[rbx+20]
 
mov       [rsp+20],rcx
 
cmp       qword ptr [rsp+20],0
 
je        short M01_L01
 
lea       rcx,[rbx+20]
 
mov       r8,[rbx]
 
mov       r8,[r8+30]
 
mov       r8,[r8+8]
 
cmp       qword ptr [r8+8],30
 
jle       short M01_L00
 
M01_L00
  
mov       r8,[rsp+20]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rsp+20]
 
jne       short M01_L01
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L01
  
mov       rcx,[rbx+18]
 
lea       rdx,[rsp+20]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD3250EF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L02
 
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L02
  
mov       rax,[rbx+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
nop
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L05
 
M02_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M02_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M02_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L04
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M02_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L01
  
mov       [rbx+18],ebp
 
jmp       short M02_L04
 
M02_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L01
 
M02_L03
  
mov       rcx,rbx
 
call      qword ptr [7FFD3203CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M02_L04
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        near ptr M02_L00
 
M02_L05
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M02_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M03_L10
 
mov       rcx,25151006B10
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M03_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M03_L11
 
M03_L00
  
mov       rdi,[rbp-28]
 
M03_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFD3203C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M03_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M03_L09
 
M03_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M03_L04
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M03_L07
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M03_L07
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M03_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M03_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L03
  
mov       [rdi+18],r14d
 
jmp       short M03_L07
 
M03_L04
  
call      CORINFO_HELP_RNGCHKFAIL
 
M03_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M03_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M03_L03
 
M03_L06
  
mov       rcx,rdi
 
call      qword ptr [7FFD3203CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M03_L07
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        near ptr M03_L02
 
jmp       short M03_L09
 
M03_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M03_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFD3202EB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M03_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L10
  
mov       rax,291E3060008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD3250EF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M03_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M03_L00
 
M03_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M03_L01
 
M03_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,25151006B10
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M03_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M03_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFD3203C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M03_L15
 
M03_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M03_L18
 
M03_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M03_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M03_L18
 
M03_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M03_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD3250EEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M03_L18
 
M03_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M03_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rdi+18],rcx
 
jne       short M04_L03
 
mov       rcx,[rsi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rsi+1C]
 
mov       rdx,[rdi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M04_L04
 
mov       rcx,rsi
 
xor       edx,edx
 
call      qword ptr [7FFD3203C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
M04_L00
  
cmp       qword ptr [rbx+20],0
 
jne       short M04_L05
 
lea       rcx,[rbx+20]
 
mov       rdx,[rbx]
 
mov       rdx,[rdx+30]
 
mov       rdx,[rdx+8]
 
cmp       qword ptr [rdx+8],30
 
jle       short M04_L01
 
M04_L01
  
mov       rdx,rsi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
jne       short M04_L05
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L02
  
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L03
  
mov       rdx,rsi
 
mov       rcx,[rdi+8]
 
call      qword ptr [rdi+18]
 
test      eax,eax
 
jne       short M04_L00
 
M04_L04
  
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L05
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M04_L02
 
mov       rcx,[rbx+18]
 
mov       rdx,rsi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD3250EEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionStringBuilderPool()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,2AB6C406168
 
mov       rsi,[rcx]
 
mov       rcx,rsi
 
call      qword ptr [7FFD324FE560]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
 
mov       rdi,rax
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rbp+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
mov       [rbp+18],rcx
 
mov       [rsp+30],rbp
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFD327C7618]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       rbp,rax
 
mov       rcx,rsi
 
mov       rdx,rdi
 
call      qword ptr [7FFD324EE9A0]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
 
mov       [rsp+28],rbp
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L00
  
call      qword ptr [7FFD31D841F8]
 
int       3
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rcx,[rbx+20]
 
mov       [rsp+20],rcx
 
cmp       qword ptr [rsp+20],0
 
je        short M01_L01
 
lea       rcx,[rbx+20]
 
mov       r8,[rbx]
 
mov       r8,[r8+30]
 
mov       r8,[r8+8]
 
cmp       qword ptr [r8+8],30
 
jle       short M01_L00
 
M01_L00
  
mov       r8,[rsp+20]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rsp+20]
 
jne       short M01_L01
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L01
  
mov       rcx,[rbx+18]
 
lea       rdx,[rsp+20]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD324EEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L02
 
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L02
  
mov       rax,[rbx+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
nop
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L05
 
M02_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M02_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M02_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L04
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M02_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L01
  
mov       [rbx+18],ebp
 
jmp       short M02_L04
 
M02_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L01
 
M02_L03
  
mov       rcx,rbx
 
call      qword ptr [7FFD3201CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M02_L04
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        near ptr M02_L00
 
M02_L05
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M02_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M03_L10
 
mov       rcx,2AB6C406B10
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M03_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M03_L11
 
M03_L00
  
mov       rdi,[rbp-28]
 
M03_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFD3201C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M03_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M03_L09
 
M03_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M03_L04
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M03_L07
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M03_L07
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M03_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M03_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L03
  
mov       [rdi+18],r14d
 
jmp       short M03_L07
 
M03_L04
  
call      CORINFO_HELP_RNGCHKFAIL
 
M03_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M03_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M03_L03
 
M03_L06
  
mov       rcx,rdi
 
call      qword ptr [7FFD3201CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M03_L07
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        near ptr M03_L02
 
jmp       short M03_L09
 
M03_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M03_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFD3200EB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M03_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L10
  
mov       rax,2EBFE2A0008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD324EEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M03_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M03_L00
 
M03_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M03_L01
 
M03_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,2AB6C406B10
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M03_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M03_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFD3201C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M03_L15
 
M03_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M03_L18
 
M03_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M03_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M03_L18
 
M03_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M03_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD324EEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M03_L18
 
M03_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M03_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rdi+18],rcx
 
jne       short M04_L03
 
mov       rcx,[rsi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rsi+1C]
 
mov       rdx,[rdi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M04_L04
 
mov       rcx,rsi
 
xor       edx,edx
 
call      qword ptr [7FFD3201C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
M04_L00
  
cmp       qword ptr [rbx+20],0
 
jne       short M04_L05
 
lea       rcx,[rbx+20]
 
mov       rdx,[rbx]
 
mov       rdx,[rdx+30]
 
mov       rdx,[rdx+8]
 
cmp       qword ptr [rdx+8],30
 
jle       short M04_L01
 
M04_L01
  
mov       rdx,rsi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
jne       short M04_L05
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L02
  
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L03
  
mov       rdx,rsi
 
mov       rcx,[rdi+8]
 
call      qword ptr [rdi+18]
 
test      eax,eax
 
jne       short M04_L00
 
M04_L04
  
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L05
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M04_L02
 
mov       rcx,[rbx+18]
 
mov       rdx,rsi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD324EEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionStringBuilderPool()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,1BFD6808160
 
mov       rsi,[rcx]
 
mov       rcx,rsi
 
call      qword ptr [7FFD3250E560]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
 
mov       rdi,rax
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rbp+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
mov       [rbp+18],rcx
 
mov       [rsp+30],rbp
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFD327D7B40]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       rbp,rax
 
mov       rcx,rsi
 
mov       rdx,rdi
 
call      qword ptr [7FFD324FE9A0]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
 
mov       [rsp+28],rbp
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L00
  
call      qword ptr [7FFD31D941F8]
 
int       3
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rcx,[rbx+20]
 
mov       [rsp+20],rcx
 
cmp       qword ptr [rsp+20],0
 
je        short M01_L01
 
lea       rcx,[rbx+20]
 
mov       r8,[rbx]
 
mov       r8,[r8+30]
 
mov       r8,[r8+8]
 
cmp       qword ptr [r8+8],30
 
jle       short M01_L00
 
M01_L00
  
mov       r8,[rsp+20]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rsp+20]
 
jne       short M01_L01
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L01
  
mov       rcx,[rbx+18]
 
lea       rdx,[rsp+20]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD324FEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L02
 
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L02
  
mov       rax,[rbx+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
nop
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       short M02_L03
 
M02_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M02_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M02_L02
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L02
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M02_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L01
  
mov       [rbx+18],ebp
 
M02_L02
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        short M02_L00
 
M02_L03
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M02_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L01
 
M02_L05
  
mov       rcx,rbx
 
call      qword ptr [7FFD3202CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M02_L02
 
M02_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M03_L10
 
mov       rcx,1BFD6808B08
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M03_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M03_L11
 
M03_L00
  
mov       rdi,[rbp-28]
 
M03_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFD3202C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M03_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M03_L09
 
M03_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M03_L05
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M03_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M03_L04
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M03_L07
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M03_L06
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L03
  
mov       [rdi+18],r14d
 
M03_L04
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        short M03_L02
 
jmp       short M03_L09
 
M03_L05
  
call      CORINFO_HELP_RNGCHKFAIL
 
M03_L06
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M03_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M03_L03
 
M03_L07
  
mov       rcx,rdi
 
call      qword ptr [7FFD3202CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M03_L04
 
M03_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M03_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFD3201EB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M03_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L10
  
mov       rax,20064620008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD324FEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M03_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M03_L00
 
M03_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M03_L01
 
M03_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,1BFD6808B08
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M03_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M03_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFD3202C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M03_L15
 
M03_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M03_L18
 
M03_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M03_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M03_L18
 
M03_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M03_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD324FEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M03_L18
 
M03_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M03_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rdi+18],rcx
 
jne       short M04_L03
 
mov       rcx,[rsi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rsi+1C]
 
mov       rdx,[rdi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M04_L04
 
mov       rcx,rsi
 
xor       edx,edx
 
call      qword ptr [7FFD3202C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
M04_L00
  
cmp       qword ptr [rbx+20],0
 
jne       short M04_L05
 
lea       rcx,[rbx+20]
 
mov       rdx,[rbx]
 
mov       rdx,[rdx+30]
 
mov       rdx,[rdx+8]
 
cmp       qword ptr [rdx+8],30
 
jle       short M04_L01
 
M04_L01
  
mov       rdx,rsi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
jne       short M04_L05
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L02
  
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L03
  
mov       rdx,rsi
 
mov       rcx,[rdi+8]
 
call      qword ptr [rdi+18]
 
test      eax,eax
 
jne       short M04_L00
 
M04_L04
  
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L05
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M04_L02
 
mov       rcx,[rbx+18]
 
mov       rdx,rsi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD324FEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionStringBuilderPool()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,1A0AC008160
 
mov       rsi,[rcx]
 
mov       rcx,rsi
 
call      qword ptr [7FFD324FE560]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
 
mov       rdi,rax
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rbp+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
mov       [rbp+18],rcx
 
mov       [rsp+30],rbp
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFD327C7B40]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       rbp,rax
 
mov       rcx,rsi
 
mov       rdx,rdi
 
call      qword ptr [7FFD324EE9A0]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
 
mov       [rsp+28],rbp
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L00
  
call      qword ptr [7FFD31D841F8]
 
int       3
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rcx,[rbx+20]
 
mov       [rsp+20],rcx
 
cmp       qword ptr [rsp+20],0
 
je        short M01_L01
 
lea       rcx,[rbx+20]
 
mov       r8,[rbx]
 
mov       r8,[r8+30]
 
mov       r8,[r8+8]
 
cmp       qword ptr [r8+8],30
 
jle       short M01_L00
 
M01_L00
  
mov       r8,[rsp+20]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rsp+20]
 
jne       short M01_L01
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L01
  
mov       rcx,[rbx+18]
 
lea       rdx,[rsp+20]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD324EEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L02
 
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L02
  
mov       rax,[rbx+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
nop
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L05
 
M02_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M02_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M02_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L04
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M02_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L01
  
mov       [rbx+18],ebp
 
jmp       short M02_L04
 
M02_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L01
 
M02_L03
  
mov       rcx,rbx
 
call      qword ptr [7FFD3201CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M02_L04
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        near ptr M02_L00
 
M02_L05
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M02_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M03_L10
 
mov       rcx,1A0AC008B08
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M03_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M03_L11
 
M03_L00
  
mov       rdi,[rbp-28]
 
M03_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFD3201C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M03_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M03_L09
 
M03_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M03_L05
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M03_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M03_L04
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M03_L07
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M03_L06
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L03
  
mov       [rdi+18],r14d
 
M03_L04
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        short M03_L02
 
jmp       short M03_L09
 
M03_L05
  
call      CORINFO_HELP_RNGCHKFAIL
 
M03_L06
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M03_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M03_L03
 
M03_L07
  
mov       rcx,rdi
 
call      qword ptr [7FFD3201CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M03_L04
 
M03_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M03_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFD3200EB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M03_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L10
  
mov       rax,1E13E030008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD324EEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M03_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M03_L00
 
M03_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M03_L01
 
M03_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,1A0AC008B08
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M03_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M03_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFD3201C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M03_L15
 
M03_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M03_L18
 
M03_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M03_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M03_L18
 
M03_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M03_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD324EEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M03_L18
 
M03_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M03_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rdi+18],rcx
 
jne       short M04_L03
 
mov       rcx,[rsi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rsi+1C]
 
mov       rdx,[rdi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M04_L04
 
mov       rcx,rsi
 
xor       edx,edx
 
call      qword ptr [7FFD3201C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
M04_L00
  
cmp       qword ptr [rbx+20],0
 
jne       short M04_L05
 
lea       rcx,[rbx+20]
 
mov       rdx,[rbx]
 
mov       rdx,[rdx+30]
 
mov       rdx,[rdx+8]
 
cmp       qword ptr [rdx+8],30
 
jle       short M04_L01
 
M04_L01
  
mov       rdx,rsi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
jne       short M04_L05
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L02
  
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L03
  
mov       rdx,rsi
 
mov       rcx,[rdi+8]
 
call      qword ptr [rdi+18]
 
test      eax,eax
 
jne       short M04_L00
 
M04_L04
  
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L05
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M04_L02
 
mov       rcx,[rbx+18]
 
mov       rdx,rsi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD324EEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionStringBuilderPool()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,23628006168
 
mov       rsi,[rcx]
 
mov       rcx,rsi
 
call      qword ptr [7FFD324FE560]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
 
mov       rdi,rax
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rbp+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
mov       [rbp+18],rcx
 
mov       [rsp+30],rbp
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFD327C7B40]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       rbp,rax
 
mov       rcx,rsi
 
mov       rdx,rdi
 
call      qword ptr [7FFD324EE9A0]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
 
mov       [rsp+28],rbp
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L00
  
call      qword ptr [7FFD31D841F8]
 
int       3
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rcx,[rbx+20]
 
mov       [rsp+20],rcx
 
cmp       qword ptr [rsp+20],0
 
je        short M01_L01
 
lea       rcx,[rbx+20]
 
mov       r8,[rbx]
 
mov       r8,[r8+30]
 
mov       r8,[r8+8]
 
cmp       qword ptr [r8+8],30
 
jle       short M01_L00
 
M01_L00
  
mov       r8,[rsp+20]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rsp+20]
 
jne       short M01_L01
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L01
  
mov       rcx,[rbx+18]
 
lea       rdx,[rsp+20]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD324EEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L02
 
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L02
  
mov       rax,[rbx+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
nop
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       short M02_L03
 
M02_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M02_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M02_L02
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L02
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M02_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L01
  
mov       [rbx+18],ebp
 
M02_L02
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        short M02_L00
 
M02_L03
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M02_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L01
 
M02_L05
  
mov       rcx,rbx
 
call      qword ptr [7FFD3201CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M02_L02
 
M02_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M03_L10
 
mov       rcx,23628006B10
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M03_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M03_L11
 
M03_L00
  
mov       rdi,[rbp-28]
 
M03_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFD3201C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M03_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M03_L09
 
M03_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M03_L05
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M03_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M03_L04
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M03_L07
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M03_L06
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L03
  
mov       [rdi+18],r14d
 
M03_L04
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        short M03_L02
 
jmp       short M03_L09
 
M03_L05
  
call      CORINFO_HELP_RNGCHKFAIL
 
M03_L06
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M03_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M03_L03
 
M03_L07
  
mov       rcx,rdi
 
call      qword ptr [7FFD3201CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M03_L04
 
M03_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M03_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFD3200EB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M03_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L10
  
mov       rax,276B9EF0008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD324EEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M03_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M03_L00
 
M03_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M03_L01
 
M03_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,23628006B10
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M03_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M03_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFD3201C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M03_L15
 
M03_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M03_L18
 
M03_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M03_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M03_L18
 
M03_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M03_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD324EEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M03_L18
 
M03_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M03_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rdi+18],rcx
 
jne       short M04_L03
 
mov       rcx,[rsi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rsi+1C]
 
mov       rdx,[rdi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M04_L04
 
mov       rcx,rsi
 
xor       edx,edx
 
call      qword ptr [7FFD3201C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
M04_L00
  
cmp       qword ptr [rbx+20],0
 
jne       short M04_L05
 
lea       rcx,[rbx+20]
 
mov       rdx,[rbx]
 
mov       rdx,[rdx+30]
 
mov       rdx,[rdx+8]
 
cmp       qword ptr [rdx+8],30
 
jle       short M04_L01
 
M04_L01
  
mov       rdx,rsi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
jne       short M04_L05
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L02
  
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L03
  
mov       rdx,rsi
 
mov       rcx,[rdi+8]
 
call      qword ptr [rdi+18]
 
test      eax,eax
 
jne       short M04_L00
 
M04_L04
  
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L05
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M04_L02
 
mov       rcx,[rbx+18]
 
mov       rdx,rsi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD324EEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ToDelimitedStringComparison()
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+288]
 
mov       ebp,[rdi+44]
 
xor       r14d,r14d
 
jmp       near ptr M00_L04
 
M00_L00
  
mov       ecx,[rsi+1C]
 
add       ecx,[rsi+18]
 
test      ecx,ecx
 
jle       short M00_L01
 
mov       ecx,[rsi+18]
 
mov       rdx,[rsi+8]
 
cmp       [rdx+8],ecx
 
ja        near ptr M00_L09
 
mov       rcx,rsi
 
mov       edx,2C
 
call      qword ptr [7FFD3204C3F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M00_L01
  
mov       rcx,r15
 
mov       r8,r13
 
mov       rdx,2E61E800210
 
call      qword ptr [7FFD31DB6B20]; System.String.Concat(System.String, System.String, System.String)
 
mov       r15,rax
 
mov       r8,gs:[58]
 
mov       r8,[r8+38]
 
cmp       dword ptr [r8+190],4
 
jl        near ptr M00_L12
 
mov       r8,[r8+198]
 
mov       r8,[r8+20]
 
test      r8,r8
 
je        near ptr M00_L12
 
mov       rax,[r8]
 
add       rax,10
 
M00_L02
  
cmp       qword ptr [rax+8],0
 
jne       short M00_L03
 
mov       r8,2A590800438
 
cmp       qword ptr [r8],0
 
jne       short M00_L03
 
mov       r8,2A590800418
 
cmp       qword ptr [r8],0
 
je        near ptr M00_L13
 
M00_L03
  
cmp       [r15],r15b
 
lea       rdx,[r15+0C]
 
mov       r15d,[r15+8]
 
test      r15d,r15d
 
je        short M00_L04
 
mov       r8,[rsi+8]
 
mov       r13d,[rsi+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
jbe       near ptr M00_L07
 
mov       rcx,rsi
 
mov       r8d,r15d
 
call      qword ptr [7FFD3204CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
cmp       ebp,[rdi+44]
 
jne       near ptr M00_L11
 
M00_L05
  
mov       ecx,[rdi+38]
 
cmp       r14d,ecx
 
jb        short M00_L06
 
mov       rcx,rsi
 
call      qword ptr [7FFD3203EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       ecx,ecx
 
mov       [rbx+8],rcx
 
add       rsp,30
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M00_L06
  
mov       rcx,[rdi+10]
 
lea       edx,[r14+1]
 
mov       r15d,edx
 
cmp       r14d,[rcx+8]
 
jae       near ptr M00_L14
 
mov       edx,r14d
 
lea       rdx,[rdx+rdx*2]
 
lea       rcx,[rcx+rdx*8+10]
 
cmp       dword ptr [rcx+14],0FFFFFFFF
 
mov       r14d,r15d
 
jl        short M00_L05
 
mov       r15,[rcx]
 
mov       r13,[rcx+8]
 
jmp       near ptr M00_L00
 
M00_L07
  
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M00_L10
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M00_L08
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M00_L08
  
add       r15d,r13d
 
mov       [rsi+18],r15d
 
jmp       near ptr M00_L04
 
M00_L09
  
mov       ecx,ecx
 
mov       word ptr [rdx+rcx*2+10],2C
 
inc       dword ptr [rsi+18]
 
jmp       near ptr M00_L01
 
M00_L10
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L08
 
M00_L11
  
call      qword ptr [7FFD31FAEFE8]
 
int       3
 
M00_L12
  
mov       ecx,4
 
call      CORINFO_HELP_GETSHARED_GCTHREADSTATIC_BASE_NOCTOR_OPTIMIZED
 
jmp       near ptr M00_L02
 
M00_L13
  
call      qword ptr [7FFD31F54030]; System.Globalization.CultureInfo.InitializeUserDefaultCulture()
 
jmp       near ptr M00_L03
 
M00_L14
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.AppendWithExpansion(Char)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
mov       rcx,rbx
 
mov       edx,1
 
call      qword ptr [7FFD3204CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
mov       rax,[rbx+8]
 
cmp       dword ptr [rax+8],0
 
jbe       short M01_L00
 
mov       [rax+10],si
 
inc       dword ptr [rbx+18]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L00
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.Concat(System.String, System.String, System.String)
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,r8
 
test      rbx,rbx
 
je        near ptr M02_L02
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        near ptr M02_L02
 
test      rsi,rsi
 
je        near ptr M02_L03
 
mov       r14d,[rsi+8]
 
test      r14d,r14d
 
je        near ptr M02_L03
 
test      rdi,rdi
 
je        near ptr M02_L00
 
mov       r15d,[rdi+8]
 
test      r15d,r15d
 
je        near ptr M02_L00
 
mov       r13d,ebp
 
mov       ecx,r14d
 
add       rcx,r13
 
mov       eax,r15d
 
add       rcx,rax
 
cmp       rcx,7FFFFFFF
 
jg        near ptr M02_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r12,rax
 
cmp       [r12],r12b
 
lea       rax,[r12+0C]
 
mov       [rsp+20],rax
 
mov       rcx,rax
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rbx,[rsp+20]
 
lea       rcx,[rbx+r13*2]
 
lea       rdx,[rsi+0C]
 
mov       r8d,r14d
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
add       ebp,r14d
 
movsxd    r8,ebp
 
lea       rcx,[rbx+r8*2]
 
lea       rdx,[rdi+0C]
 
mov       r8d,r15d
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r12
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M02_L00
  
mov       rcx,rbx
 
mov       rdx,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFD31DB6B08]; System.String.Concat(System.String, System.String)
 
M02_L01
  
call      qword ptr [7FFD31FAEF40]
 
int       3
 
M02_L02
  
mov       rcx,rsi
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFD31DB6B08]; System.String.Concat(System.String, System.String)
 
M02_L03
  
mov       rcx,rbx
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFD31DB6B08]; System.String.Concat(System.String, System.String)
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFD3204CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C64000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322FF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E6D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFD31FAE9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFD31FAE9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C64000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322FF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E6D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,2E61E800008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M05_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M05_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M05_L02
 
test      r8b,18
 
je        short M05_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M05_L00
  
ret
 
M05_L01
  
test      r8b,4
 
je        short M05_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M05_L00
 
M05_L02
  
cmp       r8,40
 
ja        short M05_L06
 
M05_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M05_L10
 
M05_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M05_L00
 
M05_L05
  
test      r8,r8
 
je        short M05_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M05_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M05_L00
 
M05_L06
  
cmp       r8,800
 
ja        short M05_L09
 
mov       r9,r8
 
shr       r9,6
 
M05_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M05_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M05_L03
 
jmp       short M05_L04
 
M05_L08
  
cmp       rcx,rdx
 
je        near ptr M05_L00
 
M05_L09
  
jmp       qword ptr [7FFD31E65B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M05_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M05_L04
 
System.Globalization.CultureInfo.InitializeUserDefaultCulture()
push      rsi
 
push      rbx
 
sub       rsp,28
 
call      qword ptr [7FFD8B5241F8]
 
mov       rbx,rax
 
lea       rsi,[rbx+3E0]
 
call      qword ptr [7FFD8B537B80]
 
mov       rdx,rax
 
mov       rcx,rsi
 
xor       r8d,r8d
 
call      qword ptr [7FFD8B538B78]; System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
mov       rax,[rbx+3E0]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ToDelimitedStringComparison()
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+288]
 
mov       ebp,[rdi+44]
 
xor       r14d,r14d
 
jmp       near ptr M00_L05
 
M00_L00
  
mov       ecx,[rsi+1C]
 
mov       edx,[rsi+18]
 
add       ecx,edx
 
test      ecx,ecx
 
jle       short M00_L02
 
mov       ecx,edx
 
mov       rax,[rsi+8]
 
cmp       [rax+8],ecx
 
jbe       short M00_L01
 
mov       ecx,ecx
 
mov       word ptr [rax+rcx*2+10],2C
 
inc       edx
 
mov       [rsi+18],edx
 
jmp       short M00_L02
 
M00_L01
  
mov       rcx,rsi
 
mov       edx,2C
 
call      qword ptr [7FFD3203C3F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M00_L02
  
mov       rcx,r15
 
mov       r8,r13
 
mov       rdx,26676370210
 
call      qword ptr [7FFD31DA6B20]; System.String.Concat(System.String, System.String, System.String)
 
mov       r15,rax
 
mov       r8,gs:[58]
 
mov       r8,[r8+30]
 
cmp       dword ptr [r8+190],4
 
jl        near ptr M00_L12
 
mov       r8,[r8+198]
 
mov       r8,[r8+20]
 
test      r8,r8
 
je        near ptr M00_L12
 
mov       rax,[r8]
 
add       rax,10
 
M00_L03
  
cmp       qword ptr [rax+8],0
 
jne       short M00_L04
 
mov       r8,225E4400438
 
cmp       qword ptr [r8],0
 
jne       short M00_L04
 
mov       r8,225E4400418
 
cmp       qword ptr [r8],0
 
je        near ptr M00_L13
 
M00_L04
  
cmp       [r15],r15b
 
lea       rdx,[r15+0C]
 
mov       r15d,[r15+8]
 
test      r15d,r15d
 
je        short M00_L05
 
mov       r8,[rsi+8]
 
mov       r13d,[rsi+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
jbe       near ptr M00_L08
 
mov       rcx,rsi
 
mov       r8d,r15d
 
call      qword ptr [7FFD3203CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L05
  
cmp       ebp,[rdi+44]
 
jne       near ptr M00_L11
 
M00_L06
  
mov       ecx,[rdi+38]
 
cmp       r14d,ecx
 
jb        short M00_L07
 
mov       rcx,rsi
 
call      qword ptr [7FFD3202EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       ecx,ecx
 
mov       [rbx+8],rcx
 
add       rsp,30
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M00_L07
  
mov       rcx,[rdi+10]
 
lea       edx,[r14+1]
 
mov       r15d,edx
 
cmp       r14d,[rcx+8]
 
jae       near ptr M00_L14
 
mov       edx,r14d
 
lea       rdx,[rdx+rdx*2]
 
lea       rcx,[rcx+rdx*8+10]
 
cmp       dword ptr [rcx+14],0FFFFFFFF
 
mov       r14d,r15d
 
jl        short M00_L06
 
mov       r15,[rcx]
 
mov       r13,[rcx+8]
 
jmp       near ptr M00_L00
 
M00_L08
  
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jle       short M00_L10
 
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L09
  
add       r15d,r13d
 
mov       [rsi+18],r15d
 
jmp       near ptr M00_L05
 
M00_L10
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M00_L09
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L09
 
M00_L11
  
call      qword ptr [7FFD31F9EFE8]
 
int       3
 
M00_L12
  
mov       ecx,4
 
call      CORINFO_HELP_GETSHARED_GCTHREADSTATIC_BASE_NOCTOR_OPTIMIZED
 
jmp       near ptr M00_L03
 
M00_L13
  
call      qword ptr [7FFD31F44030]; System.Globalization.CultureInfo.InitializeUserDefaultCulture()
 
jmp       near ptr M00_L04
 
M00_L14
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.AppendWithExpansion(Char)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
mov       rcx,rbx
 
mov       edx,1
 
call      qword ptr [7FFD3203CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
mov       rax,[rbx+8]
 
cmp       dword ptr [rax+8],0
 
jbe       short M01_L00
 
mov       [rax+10],si
 
inc       dword ptr [rbx+18]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L00
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.Concat(System.String, System.String, System.String)
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,r8
 
test      rbx,rbx
 
je        near ptr M02_L02
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        near ptr M02_L02
 
test      rsi,rsi
 
je        near ptr M02_L03
 
mov       r14d,[rsi+8]
 
test      r14d,r14d
 
je        near ptr M02_L03
 
test      rdi,rdi
 
je        near ptr M02_L00
 
mov       r15d,[rdi+8]
 
test      r15d,r15d
 
je        near ptr M02_L00
 
mov       r13d,ebp
 
mov       ecx,r14d
 
add       rcx,r13
 
mov       eax,r15d
 
add       rcx,rax
 
cmp       rcx,7FFFFFFF
 
jg        near ptr M02_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r12,rax
 
cmp       [r12],r12b
 
lea       rax,[r12+0C]
 
mov       [rsp+20],rax
 
mov       rcx,rax
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rbx,[rsp+20]
 
lea       rcx,[rbx+r13*2]
 
lea       rdx,[rsi+0C]
 
mov       r8d,r14d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
add       ebp,r14d
 
movsxd    r8,ebp
 
lea       rcx,[rbx+r8*2]
 
lea       rdx,[rdi+0C]
 
mov       r8d,r15d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r12
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M02_L00
  
mov       rcx,rbx
 
mov       rdx,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFD31DA6B08]; System.String.Concat(System.String, System.String)
 
M02_L01
  
call      qword ptr [7FFD31F9EF40]
 
int       3
 
M02_L02
  
mov       rcx,rsi
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFD31DA6B08]; System.String.Concat(System.String, System.String)
 
M02_L03
  
mov       rcx,rbx
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFD31DA6B08]; System.String.Concat(System.String, System.String)
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFD3203CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C54000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322EF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E5D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFD31F9E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFD31F9E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C54000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322EF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E5D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,26676370008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M05_L03
 
test      r8b,18
 
jne       short M05_L01
 
test      r8b,4
 
je        short M05_L00
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M05_L02
 
M05_L00
  
test      r8,r8
 
je        short M05_L02
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M05_L06
 
jmp       short M05_L02
 
M05_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M05_L02
  
ret
 
M05_L03
  
cmp       r8,40
 
ja        short M05_L07
 
M05_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M05_L11
 
M05_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M05_L02
 
M05_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M05_L02
 
M05_L07
  
cmp       r8,800
 
ja        short M05_L10
 
mov       r9,r8
 
shr       r9,6
 
M05_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M05_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M05_L04
 
jmp       short M05_L05
 
M05_L09
  
cmp       rcx,rdx
 
je        short M05_L02
 
M05_L10
  
jmp       qword ptr [7FFD31E55B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M05_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M05_L05
 
System.Globalization.CultureInfo.InitializeUserDefaultCulture()
push      rsi
 
push      rbx
 
sub       rsp,28
 
call      qword ptr [7FFD8B5241F8]
 
mov       rbx,rax
 
lea       rsi,[rbx+3E0]
 
call      qword ptr [7FFD8B537B80]
 
mov       rdx,rax
 
mov       rcx,rsi
 
xor       r8d,r8d
 
call      qword ptr [7FFD8B538B78]; System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
mov       rax,[rbx+3E0]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ToDelimitedStringComparison()
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+288]
 
mov       ebp,[rdi+44]
 
xor       r14d,r14d
 
jmp       near ptr M00_L08
 
M00_L00
  
mov       ecx,[rsi+1C]
 
mov       edx,[rsi+18]
 
add       ecx,edx
 
test      ecx,ecx
 
jle       short M00_L02
 
mov       ecx,edx
 
mov       rax,[rsi+8]
 
cmp       [rax+8],ecx
 
jbe       short M00_L01
 
mov       ecx,ecx
 
mov       word ptr [rax+rcx*2+10],2C
 
inc       edx
 
mov       [rsi+18],edx
 
jmp       short M00_L02
 
M00_L01
  
mov       rcx,rsi
 
mov       edx,2C
 
call      qword ptr [7FFD3203C3F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M00_L02
  
mov       rcx,r15
 
mov       r8,r13
 
mov       rdx,2F1BB780210
 
call      qword ptr [7FFD31DA6B20]; System.String.Concat(System.String, System.String, System.String)
 
mov       r15,rax
 
mov       r8,gs:[58]
 
mov       r8,[r8+30]
 
cmp       dword ptr [r8+190],4
 
jl        near ptr M00_L12
 
mov       r8,[r8+198]
 
mov       r8,[r8+20]
 
test      r8,r8
 
je        near ptr M00_L12
 
mov       rax,[r8]
 
add       rax,10
 
M00_L03
  
cmp       qword ptr [rax+8],0
 
jne       short M00_L04
 
mov       r8,2B129800438
 
cmp       qword ptr [r8],0
 
jne       short M00_L04
 
mov       r8,2B129800418
 
cmp       qword ptr [r8],0
 
je        near ptr M00_L13
 
M00_L04
  
cmp       [r15],r15b
 
lea       rdx,[r15+0C]
 
mov       r15d,[r15+8]
 
test      r15d,r15d
 
je        short M00_L08
 
mov       r8,[rsi+8]
 
mov       r13d,[rsi+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M00_L07
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jle       short M00_L06
 
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L05
  
add       r15d,r13d
 
mov       [rsi+18],r15d
 
jmp       short M00_L08
 
M00_L06
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M00_L05
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L05
 
M00_L07
  
mov       rcx,rsi
 
mov       r8d,r15d
 
call      qword ptr [7FFD3203CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L08
  
cmp       ebp,[rdi+44]
 
jne       short M00_L11
 
M00_L09
  
mov       ecx,[rdi+38]
 
cmp       r14d,ecx
 
jb        short M00_L10
 
mov       rcx,rsi
 
call      qword ptr [7FFD3202EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       ecx,ecx
 
mov       [rbx+8],rcx
 
add       rsp,30
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M00_L10
  
mov       rcx,[rdi+10]
 
lea       edx,[r14+1]
 
mov       r15d,edx
 
cmp       r14d,[rcx+8]
 
jae       short M00_L14
 
mov       edx,r14d
 
lea       rdx,[rdx+rdx*2]
 
lea       rcx,[rcx+rdx*8+10]
 
cmp       dword ptr [rcx+14],0FFFFFFFF
 
mov       r14d,r15d
 
jl        short M00_L09
 
mov       r15,[rcx]
 
mov       r13,[rcx+8]
 
jmp       near ptr M00_L00
 
M00_L11
  
call      qword ptr [7FFD31F9EFE8]
 
int       3
 
M00_L12
  
mov       ecx,4
 
call      CORINFO_HELP_GETSHARED_GCTHREADSTATIC_BASE_NOCTOR_OPTIMIZED
 
jmp       near ptr M00_L03
 
M00_L13
  
call      qword ptr [7FFD31F44030]; System.Globalization.CultureInfo.InitializeUserDefaultCulture()
 
jmp       near ptr M00_L04
 
M00_L14
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.AppendWithExpansion(Char)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
mov       rcx,rbx
 
mov       edx,1
 
call      qword ptr [7FFD3203CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
mov       rax,[rbx+8]
 
cmp       dword ptr [rax+8],0
 
jbe       short M01_L00
 
mov       [rax+10],si
 
inc       dword ptr [rbx+18]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L00
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.Concat(System.String, System.String, System.String)
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,r8
 
test      rbx,rbx
 
je        near ptr M02_L02
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        near ptr M02_L02
 
test      rsi,rsi
 
je        near ptr M02_L03
 
mov       r14d,[rsi+8]
 
test      r14d,r14d
 
je        near ptr M02_L03
 
test      rdi,rdi
 
je        near ptr M02_L00
 
mov       r15d,[rdi+8]
 
test      r15d,r15d
 
je        near ptr M02_L00
 
mov       r13d,ebp
 
mov       ecx,r14d
 
add       rcx,r13
 
mov       eax,r15d
 
add       rcx,rax
 
cmp       rcx,7FFFFFFF
 
jg        near ptr M02_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r12,rax
 
cmp       [r12],r12b
 
lea       rax,[r12+0C]
 
mov       [rsp+20],rax
 
mov       rcx,rax
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rbx,[rsp+20]
 
lea       rcx,[rbx+r13*2]
 
lea       rdx,[rsi+0C]
 
mov       r8d,r14d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
add       ebp,r14d
 
movsxd    r8,ebp
 
lea       rcx,[rbx+r8*2]
 
lea       rdx,[rdi+0C]
 
mov       r8d,r15d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r12
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M02_L00
  
mov       rcx,rbx
 
mov       rdx,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFD31DA6B08]; System.String.Concat(System.String, System.String)
 
M02_L01
  
call      qword ptr [7FFD31F9EF40]
 
int       3
 
M02_L02
  
mov       rcx,rsi
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFD31DA6B08]; System.String.Concat(System.String, System.String)
 
M02_L03
  
mov       rcx,rbx
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFD31DA6B08]; System.String.Concat(System.String, System.String)
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M03_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M03_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M03_L03
 
test      r8b,18
 
jne       short M03_L01
 
test      r8b,4
 
je        short M03_L00
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M03_L02
 
M03_L00
  
test      r8,r8
 
je        short M03_L02
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M03_L02
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M03_L02
 
M03_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M03_L02
  
ret
 
M03_L03
  
cmp       r8,40
 
ja        short M03_L06
 
M03_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M03_L10
 
M03_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M03_L02
 
M03_L06
  
cmp       r8,800
 
ja        short M03_L09
 
mov       r9,r8
 
shr       r9,6
 
M03_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M03_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M03_L04
 
jmp       short M03_L05
 
M03_L08
  
cmp       rcx,rdx
 
je        short M03_L02
 
M03_L09
  
jmp       qword ptr [7FFD31E55B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M03_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M03_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M04_L03
 
cmp       r8d,edi
 
jl        near ptr M04_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M04_L01
 
test      r8,r8
 
je        near ptr M04_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M04_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M04_L00
  
cmp       ebp,r10d
 
ja        near ptr M04_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M04_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFD3203CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M04_L07
 
M04_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M04_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C54000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322EF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E5D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L04
  
test      eax,eax
 
jne       short M04_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M04_L00
 
M04_L05
  
call      qword ptr [7FFD31F9E9D0]
 
int       3
 
M04_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M04_L02
 
M04_L07
  
call      qword ptr [7FFD31F9E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M05_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M05_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M05_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M05_L02
 
cmp       [rdx+8],r8d
 
jb        short M05_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M05_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M05_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C54000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322EF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E5D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L03
  
mov       rax,2F1BB780008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Globalization.CultureInfo.InitializeUserDefaultCulture()
push      rsi
 
push      rbx
 
sub       rsp,28
 
call      qword ptr [7FFD8B5241F8]
 
mov       rbx,rax
 
lea       rsi,[rbx+3E0]
 
call      qword ptr [7FFD8B537B80]
 
mov       rdx,rax
 
mov       rcx,rsi
 
xor       r8d,r8d
 
call      qword ptr [7FFD8B538B78]; System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
mov       rax,[rbx+3E0]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ToDelimitedStringComparison()
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+288]
 
mov       ebp,[rdi+44]
 
xor       r14d,r14d
 
jmp       near ptr M00_L08
 
M00_L00
  
mov       ecx,[rsi+1C]
 
mov       edx,[rsi+18]
 
add       ecx,edx
 
test      ecx,ecx
 
jle       short M00_L02
 
mov       ecx,edx
 
mov       rax,[rsi+8]
 
cmp       [rax+8],ecx
 
jbe       short M00_L01
 
mov       ecx,ecx
 
mov       word ptr [rax+rcx*2+10],2C
 
inc       edx
 
mov       [rsi+18],edx
 
jmp       short M00_L02
 
M00_L01
  
mov       rcx,rsi
 
mov       edx,2C
 
call      qword ptr [7FFD3203C3F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M00_L02
  
mov       rcx,r15
 
mov       r8,r13
 
mov       rdx,2A8E1910210
 
call      qword ptr [7FFD31DA6B20]; System.String.Concat(System.String, System.String, System.String)
 
mov       r15,rax
 
mov       r8,gs:[58]
 
mov       r8,[r8+38]
 
cmp       dword ptr [r8+190],4
 
jl        near ptr M00_L12
 
mov       r8,[r8+198]
 
mov       r8,[r8+20]
 
test      r8,r8
 
je        near ptr M00_L12
 
mov       rax,[r8]
 
add       rax,10
 
M00_L03
  
cmp       qword ptr [rax+8],0
 
jne       short M00_L04
 
mov       r8,26853800438
 
cmp       qword ptr [r8],0
 
jne       short M00_L04
 
mov       r8,26853800418
 
cmp       qword ptr [r8],0
 
je        near ptr M00_L13
 
M00_L04
  
cmp       [r15],r15b
 
lea       rdx,[r15+0C]
 
mov       r15d,[r15+8]
 
test      r15d,r15d
 
je        short M00_L08
 
mov       r8,[rsi+8]
 
mov       r13d,[rsi+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M00_L07
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jle       short M00_L06
 
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L05
  
add       r15d,r13d
 
mov       [rsi+18],r15d
 
jmp       short M00_L08
 
M00_L06
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M00_L05
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L05
 
M00_L07
  
mov       rcx,rsi
 
mov       r8d,r15d
 
call      qword ptr [7FFD3203CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L08
  
cmp       ebp,[rdi+44]
 
jne       short M00_L11
 
M00_L09
  
mov       ecx,[rdi+38]
 
cmp       r14d,ecx
 
jb        short M00_L10
 
mov       rcx,rsi
 
call      qword ptr [7FFD3202EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       ecx,ecx
 
mov       [rbx+8],rcx
 
add       rsp,30
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M00_L10
  
mov       rcx,[rdi+10]
 
lea       edx,[r14+1]
 
mov       r15d,edx
 
cmp       r14d,[rcx+8]
 
jae       short M00_L14
 
mov       edx,r14d
 
lea       rdx,[rdx+rdx*2]
 
lea       rcx,[rcx+rdx*8+10]
 
cmp       dword ptr [rcx+14],0FFFFFFFF
 
mov       r14d,r15d
 
jl        short M00_L09
 
mov       r15,[rcx]
 
mov       r13,[rcx+8]
 
jmp       near ptr M00_L00
 
M00_L11
  
call      qword ptr [7FFD31F9EFE8]
 
int       3
 
M00_L12
  
mov       ecx,4
 
call      CORINFO_HELP_GETSHARED_GCTHREADSTATIC_BASE_NOCTOR_OPTIMIZED
 
jmp       near ptr M00_L03
 
M00_L13
  
call      qword ptr [7FFD31F44030]; System.Globalization.CultureInfo.InitializeUserDefaultCulture()
 
jmp       near ptr M00_L04
 
M00_L14
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.AppendWithExpansion(Char)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
mov       rcx,rbx
 
mov       edx,1
 
call      qword ptr [7FFD3203CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
mov       rax,[rbx+8]
 
cmp       dword ptr [rax+8],0
 
jbe       short M01_L00
 
mov       [rax+10],si
 
inc       dword ptr [rbx+18]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L00
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.Concat(System.String, System.String, System.String)
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,r8
 
test      rbx,rbx
 
je        near ptr M02_L02
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        near ptr M02_L02
 
test      rsi,rsi
 
je        near ptr M02_L03
 
mov       r14d,[rsi+8]
 
test      r14d,r14d
 
je        near ptr M02_L03
 
test      rdi,rdi
 
je        near ptr M02_L00
 
mov       r15d,[rdi+8]
 
test      r15d,r15d
 
je        near ptr M02_L00
 
mov       r13d,ebp
 
mov       ecx,r14d
 
add       rcx,r13
 
mov       eax,r15d
 
add       rcx,rax
 
cmp       rcx,7FFFFFFF
 
jg        near ptr M02_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r12,rax
 
cmp       [r12],r12b
 
lea       rax,[r12+0C]
 
mov       [rsp+20],rax
 
mov       rcx,rax
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rbx,[rsp+20]
 
lea       rcx,[rbx+r13*2]
 
lea       rdx,[rsi+0C]
 
mov       r8d,r14d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
add       ebp,r14d
 
movsxd    r8,ebp
 
lea       rcx,[rbx+r8*2]
 
lea       rdx,[rdi+0C]
 
mov       r8d,r15d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r12
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M02_L00
  
mov       rcx,rbx
 
mov       rdx,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFD31DA6B08]; System.String.Concat(System.String, System.String)
 
M02_L01
  
call      qword ptr [7FFD31F9EF40]
 
int       3
 
M02_L02
  
mov       rcx,rsi
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFD31DA6B08]; System.String.Concat(System.String, System.String)
 
M02_L03
  
mov       rcx,rbx
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFD31DA6B08]; System.String.Concat(System.String, System.String)
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M03_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M03_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M03_L03
 
test      r8b,18
 
jne       short M03_L01
 
test      r8b,4
 
je        short M03_L00
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M03_L02
 
M03_L00
  
test      r8,r8
 
je        short M03_L02
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M03_L02
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M03_L02
 
M03_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M03_L02
  
ret
 
M03_L03
  
cmp       r8,40
 
ja        short M03_L06
 
M03_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M03_L10
 
M03_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M03_L02
 
M03_L06
  
cmp       r8,800
 
ja        short M03_L09
 
mov       r9,r8
 
shr       r9,6
 
M03_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M03_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M03_L04
 
jmp       short M03_L05
 
M03_L08
  
cmp       rcx,rdx
 
je        short M03_L02
 
M03_L09
  
jmp       qword ptr [7FFD31E55B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M03_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M03_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M04_L03
 
cmp       r8d,edi
 
jl        near ptr M04_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M04_L01
 
test      r8,r8
 
je        near ptr M04_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M04_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M04_L00
  
cmp       ebp,r10d
 
ja        near ptr M04_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M04_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFD3203CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M04_L07
 
M04_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M04_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C54000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322EF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E5D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L04
  
test      eax,eax
 
jne       short M04_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M04_L00
 
M04_L05
  
call      qword ptr [7FFD31F9E9D0]
 
int       3
 
M04_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M04_L02
 
M04_L07
  
call      qword ptr [7FFD31F9E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M05_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M05_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M05_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M05_L02
 
cmp       [rdx+8],r8d
 
jb        short M05_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M05_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M05_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C54000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322EF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E5D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L03
  
mov       rax,2A8E1910008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Globalization.CultureInfo.InitializeUserDefaultCulture()
push      rsi
 
push      rbx
 
sub       rsp,28
 
call      qword ptr [7FFD8B5241F8]
 
mov       rbx,rax
 
lea       rsi,[rbx+3E0]
 
call      qword ptr [7FFD8B537B80]
 
mov       rdx,rax
 
mov       rcx,rsi
 
xor       r8d,r8d
 
call      qword ptr [7FFD8B538B78]; System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
mov       rax,[rbx+3E0]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ToDelimitedStringComparison()
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+288]
 
mov       ebp,[rdi+44]
 
xor       r14d,r14d
 
jmp       near ptr M00_L08
 
M00_L00
  
mov       ecx,[rsi+1C]
 
mov       edx,[rsi+18]
 
add       ecx,edx
 
test      ecx,ecx
 
jle       short M00_L02
 
mov       ecx,edx
 
mov       rax,[rsi+8]
 
cmp       [rax+8],ecx
 
jbe       short M00_L01
 
mov       ecx,ecx
 
mov       word ptr [rax+rcx*2+10],2C
 
inc       edx
 
mov       [rsi+18],edx
 
jmp       short M00_L02
 
M00_L01
  
mov       rcx,rsi
 
mov       edx,2C
 
call      qword ptr [7FFD3200C3F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M00_L02
  
mov       rcx,r15
 
mov       r8,r13
 
mov       rdx,2ADC7150210
 
call      qword ptr [7FFD31D76B20]; System.String.Concat(System.String, System.String, System.String)
 
mov       r15,rax
 
mov       r8,gs:[58]
 
mov       r8,[r8+30]
 
cmp       dword ptr [r8+190],4
 
jl        near ptr M00_L12
 
mov       r8,[r8+198]
 
mov       r8,[r8+20]
 
test      r8,r8
 
je        near ptr M00_L12
 
mov       rax,[r8]
 
add       rax,10
 
M00_L03
  
cmp       qword ptr [rax+8],0
 
jne       short M00_L04
 
mov       r8,26D39400438
 
cmp       qword ptr [r8],0
 
jne       short M00_L04
 
mov       r8,26D39400418
 
cmp       qword ptr [r8],0
 
je        near ptr M00_L13
 
M00_L04
  
cmp       [r15],r15b
 
lea       rdx,[r15+0C]
 
mov       r15d,[r15+8]
 
test      r15d,r15d
 
je        short M00_L08
 
mov       r8,[rsi+8]
 
mov       r13d,[rsi+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M00_L07
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jle       short M00_L06
 
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFD31E25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L05
  
add       r15d,r13d
 
mov       [rsi+18],r15d
 
jmp       short M00_L08
 
M00_L06
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M00_L05
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L05
 
M00_L07
  
mov       rcx,rsi
 
mov       r8d,r15d
 
call      qword ptr [7FFD3200CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L08
  
cmp       ebp,[rdi+44]
 
jne       short M00_L11
 
M00_L09
  
mov       ecx,[rdi+38]
 
cmp       r14d,ecx
 
jb        short M00_L10
 
mov       rcx,rsi
 
call      qword ptr [7FFD31FFEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       ecx,ecx
 
mov       [rbx+8],rcx
 
add       rsp,30
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M00_L10
  
mov       rcx,[rdi+10]
 
lea       edx,[r14+1]
 
mov       r15d,edx
 
cmp       r14d,[rcx+8]
 
jae       short M00_L14
 
mov       edx,r14d
 
lea       rdx,[rdx+rdx*2]
 
lea       rcx,[rcx+rdx*8+10]
 
cmp       dword ptr [rcx+14],0FFFFFFFF
 
mov       r14d,r15d
 
jl        short M00_L09
 
mov       r15,[rcx]
 
mov       r13,[rcx+8]
 
jmp       near ptr M00_L00
 
M00_L11
  
call      qword ptr [7FFD31F6EFE8]
 
int       3
 
M00_L12
  
mov       ecx,4
 
call      CORINFO_HELP_GETSHARED_GCTHREADSTATIC_BASE_NOCTOR_OPTIMIZED
 
jmp       near ptr M00_L03
 
M00_L13
  
call      qword ptr [7FFD31F14030]; System.Globalization.CultureInfo.InitializeUserDefaultCulture()
 
jmp       near ptr M00_L04
 
M00_L14
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.AppendWithExpansion(Char)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
mov       rcx,rbx
 
mov       edx,1
 
call      qword ptr [7FFD3200CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
mov       rax,[rbx+8]
 
cmp       dword ptr [rax+8],0
 
jbe       short M01_L00
 
mov       [rax+10],si
 
inc       dword ptr [rbx+18]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L00
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.Concat(System.String, System.String, System.String)
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,r8
 
test      rbx,rbx
 
je        near ptr M02_L02
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        near ptr M02_L02
 
test      rsi,rsi
 
je        near ptr M02_L03
 
mov       r14d,[rsi+8]
 
test      r14d,r14d
 
je        near ptr M02_L03
 
test      rdi,rdi
 
je        near ptr M02_L00
 
mov       r15d,[rdi+8]
 
test      r15d,r15d
 
je        near ptr M02_L00
 
mov       r13d,ebp
 
mov       ecx,r14d
 
add       rcx,r13
 
mov       eax,r15d
 
add       rcx,rax
 
cmp       rcx,7FFFFFFF
 
jg        near ptr M02_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r12,rax
 
cmp       [r12],r12b
 
lea       rax,[r12+0C]
 
mov       [rsp+20],rax
 
mov       rcx,rax
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFD31E25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rbx,[rsp+20]
 
lea       rcx,[rbx+r13*2]
 
lea       rdx,[rsi+0C]
 
mov       r8d,r14d
 
add       r8,r8
 
call      qword ptr [7FFD31E25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
add       ebp,r14d
 
movsxd    r8,ebp
 
lea       rcx,[rbx+r8*2]
 
lea       rdx,[rdi+0C]
 
mov       r8d,r15d
 
add       r8,r8
 
call      qword ptr [7FFD31E25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r12
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M02_L00
  
mov       rcx,rbx
 
mov       rdx,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFD31D76B08]; System.String.Concat(System.String, System.String)
 
M02_L01
  
call      qword ptr [7FFD31F6EF40]
 
int       3
 
M02_L02
  
mov       rcx,rsi
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFD31D76B08]; System.String.Concat(System.String, System.String)
 
M02_L03
  
mov       rcx,rbx
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFD31D76B08]; System.String.Concat(System.String, System.String)
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M03_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M03_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M03_L02
 
test      r8b,18
 
je        short M03_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M03_L00
  
ret
 
M03_L01
  
test      r8b,4
 
je        short M03_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M03_L00
 
M03_L02
  
cmp       r8,40
 
ja        short M03_L06
 
M03_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M03_L10
 
M03_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M03_L00
 
M03_L05
  
test      r8,r8
 
je        short M03_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M03_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M03_L00
 
M03_L06
  
cmp       r8,800
 
ja        short M03_L09
 
mov       r9,r8
 
shr       r9,6
 
M03_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M03_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M03_L03
 
jmp       short M03_L04
 
M03_L08
  
cmp       rcx,rdx
 
je        near ptr M03_L00
 
M03_L09
  
jmp       qword ptr [7FFD31E25B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M03_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M03_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M04_L03
 
cmp       r8d,edi
 
jl        near ptr M04_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M04_L01
 
test      r8,r8
 
je        near ptr M04_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M04_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M04_L00
  
cmp       ebp,r10d
 
ja        near ptr M04_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFD31E25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M04_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFD3200CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M04_L07
 
M04_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M04_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C24000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322BF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E2D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L04
  
test      eax,eax
 
jne       short M04_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M04_L00
 
M04_L05
  
call      qword ptr [7FFD31F6E9D0]
 
int       3
 
M04_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M04_L02
 
M04_L07
  
call      qword ptr [7FFD31F6E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M05_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M05_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M05_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M05_L02
 
cmp       [rdx+8],r8d
 
jb        short M05_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M05_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M05_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C24000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322BF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E2D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L03
  
mov       rax,2ADC7150008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Globalization.CultureInfo.InitializeUserDefaultCulture()
push      rsi
 
push      rbx
 
sub       rsp,28
 
call      qword ptr [7FFD8B5241F8]
 
mov       rbx,rax
 
lea       rsi,[rbx+3E0]
 
call      qword ptr [7FFD8B537B80]
 
mov       rdx,rax
 
mov       rcx,rsi
 
xor       r8d,r8d
 
call      qword ptr [7FFD8B538B78]; System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
mov       rax,[rbx+3E0]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ToDelimitedStringComparison()
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+288]
 
mov       ebp,[rdi+44]
 
xor       r14d,r14d
 
jmp       near ptr M00_L08
 
M00_L00
  
mov       ecx,[rsi+1C]
 
mov       edx,[rsi+18]
 
add       ecx,edx
 
test      ecx,ecx
 
jle       short M00_L02
 
mov       ecx,edx
 
mov       rax,[rsi+8]
 
cmp       [rax+8],ecx
 
jbe       short M00_L01
 
mov       ecx,ecx
 
mov       word ptr [rax+rcx*2+10],2C
 
inc       edx
 
mov       [rsi+18],edx
 
jmp       short M00_L02
 
M00_L01
  
mov       rcx,rsi
 
mov       edx,2C
 
call      qword ptr [7FFD3203C3F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M00_L02
  
mov       rcx,r15
 
mov       r8,r13
 
mov       rdx,2721C7D0210
 
call      qword ptr [7FFD31DA6B20]; System.String.Concat(System.String, System.String, System.String)
 
mov       r15,rax
 
mov       r8,gs:[58]
 
mov       r8,[r8+38]
 
cmp       dword ptr [r8+190],4
 
jl        near ptr M00_L12
 
mov       r8,[r8+198]
 
mov       r8,[r8+20]
 
test      r8,r8
 
je        near ptr M00_L12
 
mov       rax,[r8]
 
add       rax,10
 
M00_L03
  
cmp       qword ptr [rax+8],0
 
jne       short M00_L04
 
mov       r8,2318E800438
 
cmp       qword ptr [r8],0
 
jne       short M00_L04
 
mov       r8,2318E800418
 
cmp       qword ptr [r8],0
 
je        near ptr M00_L13
 
M00_L04
  
cmp       [r15],r15b
 
lea       rdx,[r15+0C]
 
mov       r15d,[r15+8]
 
test      r15d,r15d
 
je        short M00_L08
 
mov       r8,[rsi+8]
 
mov       r13d,[rsi+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M00_L07
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jle       short M00_L06
 
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L05
  
add       r15d,r13d
 
mov       [rsi+18],r15d
 
jmp       short M00_L08
 
M00_L06
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M00_L05
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L05
 
M00_L07
  
mov       rcx,rsi
 
mov       r8d,r15d
 
call      qword ptr [7FFD3203CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L08
  
cmp       ebp,[rdi+44]
 
jne       short M00_L11
 
M00_L09
  
mov       ecx,[rdi+38]
 
cmp       r14d,ecx
 
jb        short M00_L10
 
mov       rcx,rsi
 
call      qword ptr [7FFD3202EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       ecx,ecx
 
mov       [rbx+8],rcx
 
add       rsp,30
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M00_L10
  
mov       rcx,[rdi+10]
 
lea       edx,[r14+1]
 
mov       r15d,edx
 
cmp       r14d,[rcx+8]
 
jae       short M00_L14
 
mov       edx,r14d
 
lea       rdx,[rdx+rdx*2]
 
lea       rcx,[rcx+rdx*8+10]
 
cmp       dword ptr [rcx+14],0FFFFFFFF
 
mov       r14d,r15d
 
jl        short M00_L09
 
mov       r15,[rcx]
 
mov       r13,[rcx+8]
 
jmp       near ptr M00_L00
 
M00_L11
  
call      qword ptr [7FFD31F9EFE8]
 
int       3
 
M00_L12
  
mov       ecx,4
 
call      CORINFO_HELP_GETSHARED_GCTHREADSTATIC_BASE_NOCTOR_OPTIMIZED
 
jmp       near ptr M00_L03
 
M00_L13
  
call      qword ptr [7FFD31F44030]; System.Globalization.CultureInfo.InitializeUserDefaultCulture()
 
jmp       near ptr M00_L04
 
M00_L14
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.AppendWithExpansion(Char)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
mov       rcx,rbx
 
mov       edx,1
 
call      qword ptr [7FFD3203CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
mov       rax,[rbx+8]
 
cmp       dword ptr [rax+8],0
 
jbe       short M01_L00
 
mov       [rax+10],si
 
inc       dword ptr [rbx+18]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L00
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.Concat(System.String, System.String, System.String)
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,r8
 
test      rbx,rbx
 
je        near ptr M02_L02
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        near ptr M02_L02
 
test      rsi,rsi
 
je        near ptr M02_L03
 
mov       r14d,[rsi+8]
 
test      r14d,r14d
 
je        near ptr M02_L03
 
test      rdi,rdi
 
je        near ptr M02_L00
 
mov       r15d,[rdi+8]
 
test      r15d,r15d
 
je        near ptr M02_L00
 
mov       r13d,ebp
 
mov       ecx,r14d
 
add       rcx,r13
 
mov       eax,r15d
 
add       rcx,rax
 
cmp       rcx,7FFFFFFF
 
jg        near ptr M02_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r12,rax
 
cmp       [r12],r12b
 
lea       rax,[r12+0C]
 
mov       [rsp+20],rax
 
mov       rcx,rax
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rbx,[rsp+20]
 
lea       rcx,[rbx+r13*2]
 
lea       rdx,[rsi+0C]
 
mov       r8d,r14d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
add       ebp,r14d
 
movsxd    r8,ebp
 
lea       rcx,[rbx+r8*2]
 
lea       rdx,[rdi+0C]
 
mov       r8d,r15d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r12
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M02_L00
  
mov       rcx,rbx
 
mov       rdx,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFD31DA6B08]; System.String.Concat(System.String, System.String)
 
M02_L01
  
call      qword ptr [7FFD31F9EF40]
 
int       3
 
M02_L02
  
mov       rcx,rsi
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFD31DA6B08]; System.String.Concat(System.String, System.String)
 
M02_L03
  
mov       rcx,rbx
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFD31DA6B08]; System.String.Concat(System.String, System.String)
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M03_L03
 
test      r8b,18
 
jne       short M03_L01
 
test      r8b,4
 
je        short M03_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M03_L00
  
ret
 
M03_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M03_L00
 
M03_L02
  
test      r8,r8
 
je        short M03_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M03_L06
 
jmp       short M03_L00
 
M03_L03
  
cmp       r8,40
 
ja        short M03_L07
 
M03_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M03_L11
 
M03_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M03_L00
 
M03_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M03_L00
 
M03_L07
  
cmp       r8,800
 
ja        short M03_L10
 
mov       r9,r8
 
shr       r9,6
 
M03_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M03_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M03_L04
 
jmp       short M03_L05
 
M03_L09
  
cmp       rcx,rdx
 
je        near ptr M03_L00
 
M03_L10
  
jmp       qword ptr [7FFD31E55B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M03_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M03_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M04_L03
 
cmp       r8d,edi
 
jl        near ptr M04_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M04_L01
 
test      r8,r8
 
je        near ptr M04_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M04_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M04_L00
  
cmp       ebp,r10d
 
ja        near ptr M04_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M04_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFD3203CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M04_L07
 
M04_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M04_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C54000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322EF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E5D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L04
  
test      eax,eax
 
jne       short M04_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M04_L00
 
M04_L05
  
call      qword ptr [7FFD31F9E9D0]
 
int       3
 
M04_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M04_L02
 
M04_L07
  
call      qword ptr [7FFD31F9E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M05_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M05_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M05_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M05_L02
 
cmp       [rdx+8],r8d
 
jb        short M05_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M05_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M05_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C54000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322EF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E5D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L03
  
mov       rax,2721C7D0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Globalization.CultureInfo.InitializeUserDefaultCulture()
push      rsi
 
push      rbx
 
sub       rsp,28
 
call      qword ptr [7FFD8B5241F8]
 
mov       rbx,rax
 
lea       rsi,[rbx+3E0]
 
call      qword ptr [7FFD8B537B80]
 
mov       rdx,rax
 
mov       rcx,rsi
 
xor       r8d,r8d
 
call      qword ptr [7FFD8B538B78]; System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
mov       rax,[rbx+3E0]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ToDelimitedStringComparison()
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+288]
 
mov       ebp,[rdi+44]
 
xor       r14d,r14d
 
jmp       near ptr M00_L08
 
M00_L00
  
mov       ecx,[rsi+1C]
 
mov       edx,[rsi+18]
 
add       ecx,edx
 
test      ecx,ecx
 
jle       short M00_L02
 
mov       ecx,edx
 
mov       rax,[rsi+8]
 
cmp       [rax+8],ecx
 
jbe       short M00_L01
 
mov       ecx,ecx
 
mov       word ptr [rax+rcx*2+10],2C
 
inc       edx
 
mov       [rsi+18],edx
 
jmp       short M00_L02
 
M00_L01
  
mov       rcx,rsi
 
mov       edx,2C
 
call      qword ptr [7FFD3201C3F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M00_L02
  
mov       rcx,r15
 
mov       r8,r13
 
mov       rdx,257C8B10210
 
call      qword ptr [7FFD31D86B20]; System.String.Concat(System.String, System.String, System.String)
 
mov       r15,rax
 
mov       r8,gs:[58]
 
mov       r8,[r8+30]
 
cmp       dword ptr [r8+190],4
 
jl        near ptr M00_L12
 
mov       r8,[r8+198]
 
mov       r8,[r8+20]
 
test      r8,r8
 
je        near ptr M00_L12
 
mov       rax,[r8]
 
add       rax,10
 
M00_L03
  
cmp       qword ptr [rax+8],0
 
jne       short M00_L04
 
mov       r8,2173AC00438
 
cmp       qword ptr [r8],0
 
jne       short M00_L04
 
mov       r8,2173AC00418
 
cmp       qword ptr [r8],0
 
je        near ptr M00_L13
 
M00_L04
  
cmp       [r15],r15b
 
lea       rdx,[r15+0C]
 
mov       r15d,[r15+8]
 
test      r15d,r15d
 
je        short M00_L08
 
mov       r8,[rsi+8]
 
mov       r13d,[rsi+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M00_L07
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jle       short M00_L06
 
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L05
  
add       r15d,r13d
 
mov       [rsi+18],r15d
 
jmp       short M00_L08
 
M00_L06
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M00_L05
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L05
 
M00_L07
  
mov       rcx,rsi
 
mov       r8d,r15d
 
call      qword ptr [7FFD3201CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L08
  
cmp       ebp,[rdi+44]
 
jne       short M00_L11
 
M00_L09
  
mov       ecx,[rdi+38]
 
cmp       r14d,ecx
 
jb        short M00_L10
 
mov       rcx,rsi
 
call      qword ptr [7FFD3200EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       ecx,ecx
 
mov       [rbx+8],rcx
 
add       rsp,30
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M00_L10
  
mov       rcx,[rdi+10]
 
lea       edx,[r14+1]
 
mov       r15d,edx
 
cmp       r14d,[rcx+8]
 
jae       short M00_L14
 
mov       edx,r14d
 
lea       rdx,[rdx+rdx*2]
 
lea       rcx,[rcx+rdx*8+10]
 
cmp       dword ptr [rcx+14],0FFFFFFFF
 
mov       r14d,r15d
 
jl        short M00_L09
 
mov       r15,[rcx]
 
mov       r13,[rcx+8]
 
jmp       near ptr M00_L00
 
M00_L11
  
call      qword ptr [7FFD31F7EFE8]
 
int       3
 
M00_L12
  
mov       ecx,4
 
call      CORINFO_HELP_GETSHARED_GCTHREADSTATIC_BASE_NOCTOR_OPTIMIZED
 
jmp       near ptr M00_L03
 
M00_L13
  
call      qword ptr [7FFD31F24030]; System.Globalization.CultureInfo.InitializeUserDefaultCulture()
 
jmp       near ptr M00_L04
 
M00_L14
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.AppendWithExpansion(Char)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
mov       rcx,rbx
 
mov       edx,1
 
call      qword ptr [7FFD3201CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
mov       rax,[rbx+8]
 
cmp       dword ptr [rax+8],0
 
jbe       short M01_L00
 
mov       [rax+10],si
 
inc       dword ptr [rbx+18]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L00
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.Concat(System.String, System.String, System.String)
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,r8
 
test      rbx,rbx
 
je        near ptr M02_L02
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        near ptr M02_L02
 
test      rsi,rsi
 
je        near ptr M02_L03
 
mov       r14d,[rsi+8]
 
test      r14d,r14d
 
je        near ptr M02_L03
 
test      rdi,rdi
 
je        near ptr M02_L00
 
mov       r15d,[rdi+8]
 
test      r15d,r15d
 
je        near ptr M02_L00
 
mov       r13d,ebp
 
mov       ecx,r14d
 
add       rcx,r13
 
mov       eax,r15d
 
add       rcx,rax
 
cmp       rcx,7FFFFFFF
 
jg        near ptr M02_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r12,rax
 
cmp       [r12],r12b
 
lea       rax,[r12+0C]
 
mov       [rsp+20],rax
 
mov       rcx,rax
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rbx,[rsp+20]
 
lea       rcx,[rbx+r13*2]
 
lea       rdx,[rsi+0C]
 
mov       r8d,r14d
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
add       ebp,r14d
 
movsxd    r8,ebp
 
lea       rcx,[rbx+r8*2]
 
lea       rdx,[rdi+0C]
 
mov       r8d,r15d
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r12
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M02_L00
  
mov       rcx,rbx
 
mov       rdx,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFD31D86B08]; System.String.Concat(System.String, System.String)
 
M02_L01
  
call      qword ptr [7FFD31F7EF40]
 
int       3
 
M02_L02
  
mov       rcx,rsi
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFD31D86B08]; System.String.Concat(System.String, System.String)
 
M02_L03
  
mov       rcx,rbx
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFD31D86B08]; System.String.Concat(System.String, System.String)
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M03_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M03_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M03_L02
 
test      r8b,18
 
je        short M03_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M03_L00
  
ret
 
M03_L01
  
test      r8b,4
 
je        short M03_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M03_L00
 
M03_L02
  
cmp       r8,40
 
ja        short M03_L06
 
M03_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M03_L10
 
M03_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M03_L00
 
M03_L05
  
test      r8,r8
 
je        short M03_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M03_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M03_L00
 
M03_L06
  
cmp       r8,800
 
ja        short M03_L09
 
mov       r9,r8
 
shr       r9,6
 
M03_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M03_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M03_L03
 
jmp       short M03_L04
 
M03_L08
  
cmp       rcx,rdx
 
je        near ptr M03_L00
 
M03_L09
  
jmp       qword ptr [7FFD31E35B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M03_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M03_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M04_L03
 
cmp       r8d,edi
 
jl        near ptr M04_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M04_L01
 
test      r8,r8
 
je        near ptr M04_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M04_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M04_L00
  
cmp       ebp,r10d
 
ja        near ptr M04_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M04_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFD3201CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M04_L07
 
M04_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M04_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C34000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322CF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E3D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L04
  
test      eax,eax
 
jne       short M04_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M04_L00
 
M04_L05
  
call      qword ptr [7FFD31F7E9D0]
 
int       3
 
M04_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M04_L02
 
M04_L07
  
call      qword ptr [7FFD31F7E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M05_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M05_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M05_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M05_L02
 
cmp       [rdx+8],r8d
 
jb        short M05_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M05_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M05_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C34000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322CF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E3D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L03
  
mov       rax,257C8B10008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Globalization.CultureInfo.InitializeUserDefaultCulture()
push      rsi
 
push      rbx
 
sub       rsp,28
 
call      qword ptr [7FFD8B5241F8]
 
mov       rbx,rax
 
lea       rsi,[rbx+3E0]
 
call      qword ptr [7FFD8B537B80]
 
mov       rdx,rax
 
mov       rcx,rsi
 
xor       r8d,r8d
 
call      qword ptr [7FFD8B538B78]; System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
mov       rax,[rbx+3E0]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ToDelimitedStringComparison()
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+288]
 
mov       ebp,[rdi+44]
 
xor       r14d,r14d
 
jmp       near ptr M00_L08
 
M00_L00
  
mov       ecx,[rsi+1C]
 
mov       edx,[rsi+18]
 
add       ecx,edx
 
test      ecx,ecx
 
jle       short M00_L02
 
mov       ecx,edx
 
mov       rax,[rsi+8]
 
cmp       [rax+8],ecx
 
jbe       short M00_L01
 
mov       ecx,ecx
 
mov       word ptr [rax+rcx*2+10],2C
 
inc       edx
 
mov       [rsi+18],edx
 
jmp       short M00_L02
 
M00_L01
  
mov       rcx,rsi
 
mov       edx,2C
 
call      qword ptr [7FFD3204C3F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M00_L02
  
mov       rcx,r15
 
mov       r8,r13
 
mov       rdx,26F5B0B0210
 
call      qword ptr [7FFD31DB6B20]; System.String.Concat(System.String, System.String, System.String)
 
mov       r15,rax
 
mov       r8,gs:[58]
 
mov       r8,[r8+40]
 
cmp       dword ptr [r8+190],4
 
jl        near ptr M00_L12
 
mov       r8,[r8+198]
 
mov       r8,[r8+20]
 
test      r8,r8
 
je        near ptr M00_L12
 
mov       rax,[r8]
 
add       rax,10
 
M00_L03
  
cmp       qword ptr [rax+8],0
 
jne       short M00_L04
 
mov       r8,22EC9400438
 
cmp       qword ptr [r8],0
 
jne       short M00_L04
 
mov       r8,22EC9400418
 
cmp       qword ptr [r8],0
 
je        near ptr M00_L13
 
M00_L04
  
cmp       [r15],r15b
 
lea       rdx,[r15+0C]
 
mov       r13d,[r15+8]
 
test      r13d,r13d
 
je        short M00_L08
 
mov       r8,[rsi+8]
 
mov       r12d,[rsi+18]
 
lea       ecx,[r12+r13]
 
cmp       ecx,[r8+8]
 
ja        short M00_L07
 
movsxd    rcx,r12d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r13d,2
 
jle       short M00_L06
 
movsxd    r8,r13d
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L05
  
add       r13d,r12d
 
mov       [rsi+18],r13d
 
jmp       short M00_L08
 
M00_L06
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r13d,2
 
je        near ptr M00_L14
 
jmp       short M00_L05
 
M00_L07
  
mov       rcx,rsi
 
mov       r8d,r13d
 
call      qword ptr [7FFD3204CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L08
  
cmp       ebp,[rdi+44]
 
jne       short M00_L11
 
M00_L09
  
mov       ecx,[rdi+38]
 
cmp       r14d,ecx
 
jb        short M00_L10
 
mov       rcx,rsi
 
call      qword ptr [7FFD3203EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       r13,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[r13+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       ecx,ecx
 
mov       [r13+8],rcx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M00_L10
  
mov       rcx,[rdi+10]
 
lea       edx,[r14+1]
 
mov       r15d,edx
 
cmp       r14d,[rcx+8]
 
jae       short M00_L15
 
mov       edx,r14d
 
lea       rdx,[rdx+rdx*2]
 
lea       rcx,[rcx+rdx*8+10]
 
cmp       dword ptr [rcx+14],0FFFFFFFF
 
mov       r14d,r15d
 
jl        short M00_L09
 
mov       r15,[rcx]
 
mov       r13,[rcx+8]
 
jmp       near ptr M00_L00
 
M00_L11
  
call      qword ptr [7FFD31FAEFE8]
 
int       3
 
M00_L12
  
mov       ecx,4
 
call      CORINFO_HELP_GETSHARED_GCTHREADSTATIC_BASE_NOCTOR_OPTIMIZED
 
jmp       near ptr M00_L03
 
M00_L13
  
call      qword ptr [7FFD31F54030]; System.Globalization.CultureInfo.InitializeUserDefaultCulture()
 
jmp       near ptr M00_L04
 
M00_L14
  
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
jmp       near ptr M00_L05
 
M00_L15
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.AppendWithExpansion(Char)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
mov       rcx,rbx
 
mov       edx,1
 
call      qword ptr [7FFD3204CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
mov       rax,[rbx+8]
 
cmp       dword ptr [rax+8],0
 
jbe       short M01_L00
 
mov       [rax+10],si
 
inc       dword ptr [rbx+18]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L00
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.Concat(System.String, System.String, System.String)
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,r8
 
test      rbx,rbx
 
je        near ptr M02_L02
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        near ptr M02_L02
 
test      rsi,rsi
 
je        near ptr M02_L03
 
mov       r14d,[rsi+8]
 
test      r14d,r14d
 
je        near ptr M02_L03
 
test      rdi,rdi
 
je        near ptr M02_L00
 
mov       r15d,[rdi+8]
 
test      r15d,r15d
 
je        near ptr M02_L00
 
mov       r13d,ebp
 
mov       ecx,r14d
 
add       rcx,r13
 
mov       eax,r15d
 
add       rcx,rax
 
cmp       rcx,7FFFFFFF
 
jg        near ptr M02_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r12,rax
 
cmp       [r12],r12b
 
lea       rax,[r12+0C]
 
mov       [rsp+20],rax
 
mov       rcx,rax
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rbx,[rsp+20]
 
lea       rcx,[rbx+r13*2]
 
lea       rdx,[rsi+0C]
 
mov       r8d,r14d
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
add       ebp,r14d
 
movsxd    r8,ebp
 
lea       rcx,[rbx+r8*2]
 
lea       rdx,[rdi+0C]
 
mov       r8d,r15d
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r12
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M02_L00
  
mov       rcx,rbx
 
mov       rdx,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFD31DB6B08]; System.String.Concat(System.String, System.String)
 
M02_L01
  
call      qword ptr [7FFD31FAEF40]
 
int       3
 
M02_L02
  
mov       rcx,rsi
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFD31DB6B08]; System.String.Concat(System.String, System.String)
 
M02_L03
  
mov       rcx,rbx
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFD31DB6B08]; System.String.Concat(System.String, System.String)
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M03_L03
 
test      r8b,18
 
jne       short M03_L01
 
test      r8b,4
 
je        short M03_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M03_L00
  
ret
 
M03_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M03_L00
 
M03_L02
  
test      r8,r8
 
je        short M03_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M03_L06
 
jmp       short M03_L00
 
M03_L03
  
cmp       r8,40
 
ja        short M03_L07
 
M03_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M03_L11
 
M03_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M03_L00
 
M03_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M03_L00
 
M03_L07
  
cmp       r8,800
 
ja        short M03_L10
 
mov       r9,r8
 
shr       r9,6
 
M03_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M03_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M03_L04
 
jmp       short M03_L05
 
M03_L09
  
cmp       rcx,rdx
 
je        near ptr M03_L00
 
M03_L10
  
jmp       qword ptr [7FFD31E65B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M03_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M03_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M04_L03
 
cmp       r8d,edi
 
jl        near ptr M04_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M04_L01
 
test      r8,r8
 
je        near ptr M04_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M04_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M04_L00
  
cmp       ebp,r10d
 
ja        near ptr M04_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M04_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFD3204CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M04_L07
 
M04_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M04_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFD31C64000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322FF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E6D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L04
  
test      eax,eax
 
jne       short M04_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M04_L00
 
M04_L05
  
call      qword ptr [7FFD31FAE9D0]
 
int       3
 
M04_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M04_L02
 
M04_L07
  
call      qword ptr [7FFD31FAE9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M05_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M05_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M05_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M05_L02
 
cmp       [rdx+8],r8d
 
jb        short M05_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E65B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M05_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M05_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFD31C64000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFD322FF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFD31E6D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L03
  
mov       rax,26F5B0B0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Globalization.CultureInfo.InitializeUserDefaultCulture()
push      rsi
 
push      rbx
 
sub       rsp,28
 
call      qword ptr [7FFD8B5241F8]
 
mov       rbx,rax
 
lea       rsi,[rbx+3E0]
 
call      qword ptr [7FFD8B537B80]
 
mov       rdx,rax
 
mov       rcx,rsi
 
xor       r8d,r8d
 
call      qword ptr [7FFD8B538B78]; System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
mov       rax,[rbx+3E0]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpace()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,[rbx+290]
 
call      qword ptr [7FFD327E64D8]; DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < args.Length; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < args.Length - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = sb.Append(ControlChars.Space);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+70]
 
xor       eax,eax
 
mov       [rbp-40],rax
 
mov       [rbp-30],rax
 
mov       [rbp-50],rsp
 
mov       rbx,rcx
 
test      rbx,rbx
 
je        near ptr M01_L12
 
mov       esi,[rbx+8]
 
test      esi,esi
 
je        near ptr M01_L12
 
mov       rcx,175E1C06B10
 
mov       rdi,[rcx]
 
mov       rcx,[rdi+20]
 
mov       [rbp-30],rcx
 
cmp       qword ptr [rbp-30],0
 
je        near ptr M01_L13
 
lea       rcx,[rdi+20]
 
mov       r8,[rbp-30]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-30]
 
jne       near ptr M01_L13
 
M01_L00
  
mov       r14,[rbp-30]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-30],rcx
 
cmp       [r14],r14b
 
mov       rcx,r14
 
xor       edx,edx
 
call      qword ptr [7FFD3203C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-38],r14
 
xor       r15d,r15d
 
test      esi,esi
 
jle       near ptr M01_L09
 
M01_L02
  
mov       r8d,r15d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r14+8]
 
mov       eax,[r14+18]
 
lea       edi,[rax+r8]
 
cmp       edi,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L03
  
mov       [r14+18],edi
 
jmp       short M01_L06
 
M01_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L03
 
M01_L05
  
mov       rcx,r14
 
call      qword ptr [7FFD3203CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,esi
 
sub       ecx,1
 
jo        short M01_L10
 
cmp       ecx,r15d
 
jle       short M01_L08
 
mov       ecx,[r14+18]
 
mov       eax,ecx
 
mov       rdx,[r14+8]
 
mov       r8d,[rdx+8]
 
cmp       r8d,eax
 
jbe       short M01_L07
 
mov       word ptr [rdx+rax*2+10],20
 
inc       ecx
 
mov       [r14+18],ecx
 
jmp       short M01_L08
 
M01_L07
  
mov       rcx,r14
 
mov       edx,20
 
call      qword ptr [7FFD3203C3F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M01_L08
  
add       r15d,1
 
jo        short M01_L10
 
cmp       esi,r15d
 
jg        near ptr M01_L02
 
M01_L09
  
mov       rcx,r14
 
call      qword ptr [7FFD3202EB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-40],rax
 
jmp       short M01_L11
 
M01_L10
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L11
  
mov       rcx,rsp
 
call      M01_L15
 
nop
 
mov       rax,[rbp-40]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L12
  
mov       rax,1B673B40008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rcx,[rdi+18]
 
lea       rdx,[rbp-30]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD3250EF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L14
 
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
jmp       near ptr M01_L00
 
M01_L14
  
mov       rax,[rdi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r14,rax
 
jmp       near ptr M01_L01
 
M01_L15
  
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+70]
 
mov       rcx,175E1C06B10
 
mov       rdi,[rcx]
 
mov       r14,[rdi+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r14+18],rcx
 
jne       short M01_L16
 
mov       rbx,[rbp-38]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r14+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L20
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFD3203C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L17
 
M01_L16
  
mov       rdx,[rbp-38]
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
test      eax,eax
 
mov       rbx,[rbp-38]
 
je        short M01_L20
 
M01_L17
  
cmp       qword ptr [rdi+20],0
 
jne       short M01_L18
 
lea       rcx,[rdi+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L20
 
M01_L18
  
lea       rcx,[rdi+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rdi+28]
 
jg        short M01_L19
 
mov       rcx,[rdi+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD3250EEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L20
 
M01_L19
  
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
M01_L20
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpace()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,[rbx+290]
 
call      qword ptr [7FFD327C6028]; DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < args.Length; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < args.Length - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = sb.Append(ControlChars.Space);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+70]
 
xor       eax,eax
 
mov       [rbp-40],rax
 
mov       [rbp-30],rax
 
mov       [rbp-50],rsp
 
mov       rbx,rcx
 
test      rbx,rbx
 
je        near ptr M01_L12
 
mov       esi,[rbx+8]
 
test      esi,esi
 
je        near ptr M01_L12
 
mov       rcx,2B5C480AB00
 
mov       rdi,[rcx]
 
mov       rcx,[rdi+20]
 
mov       [rbp-30],rcx
 
cmp       qword ptr [rbp-30],0
 
je        near ptr M01_L13
 
lea       rcx,[rdi+20]
 
mov       r8,[rbp-30]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-30]
 
jne       near ptr M01_L13
 
M01_L00
  
mov       r14,[rbp-30]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-30],rcx
 
cmp       [r14],r14b
 
mov       rcx,r14
 
xor       edx,edx
 
call      qword ptr [7FFD31F3D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-38],r14
 
xor       r15d,r15d
 
test      esi,esi
 
jle       near ptr M01_L09
 
M01_L02
  
mov       r8d,r15d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r14+8]
 
mov       eax,[r14+18]
 
lea       edi,[rax+r8]
 
cmp       edi,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L03
  
mov       [r14+18],edi
 
jmp       short M01_L06
 
M01_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L03
 
M01_L05
  
mov       rcx,r14
 
call      qword ptr [7FFD31F3D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,esi
 
sub       ecx,1
 
jo        short M01_L10
 
cmp       ecx,r15d
 
jle       short M01_L08
 
mov       ecx,[r14+18]
 
mov       eax,ecx
 
mov       rdx,[r14+8]
 
mov       r8d,[rdx+8]
 
cmp       r8d,eax
 
jbe       short M01_L07
 
mov       word ptr [rdx+rax*2+10],20
 
inc       ecx
 
mov       [r14+18],ecx
 
jmp       short M01_L08
 
M01_L07
  
mov       rcx,r14
 
mov       edx,20
 
call      qword ptr [7FFD31F3D2F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M01_L08
  
add       r15d,1
 
jo        short M01_L10
 
cmp       esi,r15d
 
jg        near ptr M01_L02
 
M01_L09
  
mov       rcx,r14
 
call      qword ptr [7FFD31F596D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-40],rax
 
jmp       short M01_L11
 
M01_L10
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L11
  
mov       rcx,rsp
 
call      M01_L15
 
nop
 
mov       rax,[rbp-40]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L12
  
mov       rax,2F6527E0008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rcx,[rdi+18]
 
lea       rdx,[rbp-30]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD324EEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L14
 
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
jmp       near ptr M01_L00
 
M01_L14
  
mov       rax,[rdi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r14,rax
 
jmp       near ptr M01_L01
 
M01_L15
  
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+70]
 
mov       rcx,2B5C480AB00
 
mov       rdi,[rcx]
 
mov       r14,[rdi+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r14+18],rcx
 
jne       short M01_L16
 
mov       rbx,[rbp-38]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r14+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L20
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFD31F3D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L17
 
M01_L16
  
mov       rdx,[rbp-38]
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
test      eax,eax
 
mov       rbx,[rbp-38]
 
je        short M01_L20
 
M01_L17
  
cmp       qword ptr [rdi+20],0
 
jne       short M01_L18
 
lea       rcx,[rdi+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L20
 
M01_L18
  
lea       rcx,[rdi+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rdi+28]
 
jg        short M01_L19
 
mov       rcx,[rdi+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD324EEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L20
 
M01_L19
  
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
M01_L20
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpace()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,[rbx+290]
 
call      qword ptr [7FFD327D64D8]; DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < args.Length; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < args.Length - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = sb.Append(ControlChars.Space);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+70]
 
xor       eax,eax
 
mov       [rbp-40],rax
 
mov       [rbp-30],rax
 
mov       [rbp-50],rsp
 
mov       rbx,rcx
 
test      rbx,rbx
 
je        near ptr M01_L12
 
mov       esi,[rbx+8]
 
test      esi,esi
 
je        near ptr M01_L12
 
mov       rcx,234A1808B08
 
mov       rdi,[rcx]
 
mov       rcx,[rdi+20]
 
mov       [rbp-30],rcx
 
cmp       qword ptr [rbp-30],0
 
je        near ptr M01_L13
 
lea       rcx,[rdi+20]
 
mov       r8,[rbp-30]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-30]
 
jne       near ptr M01_L13
 
M01_L00
  
mov       r14,[rbp-30]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-30],rcx
 
cmp       [r14],r14b
 
mov       rcx,r14
 
xor       edx,edx
 
call      qword ptr [7FFD31F4D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-38],r14
 
xor       r15d,r15d
 
test      esi,esi
 
jle       near ptr M01_L09
 
M01_L02
  
mov       r8d,r15d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r14+8]
 
mov       eax,[r14+18]
 
lea       edi,[rax+r8]
 
cmp       edi,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L03
  
mov       [r14+18],edi
 
jmp       short M01_L06
 
M01_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L03
 
M01_L05
  
mov       rcx,r14
 
call      qword ptr [7FFD31F4D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,esi
 
sub       ecx,1
 
jo        short M01_L10
 
cmp       ecx,r15d
 
jle       short M01_L08
 
mov       ecx,[r14+18]
 
mov       eax,ecx
 
mov       rdx,[r14+8]
 
mov       r8d,[rdx+8]
 
cmp       r8d,eax
 
jbe       short M01_L07
 
mov       word ptr [rdx+rax*2+10],20
 
inc       ecx
 
mov       [r14+18],ecx
 
jmp       short M01_L08
 
M01_L07
  
mov       rcx,r14
 
mov       edx,20
 
call      qword ptr [7FFD31F4D2F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M01_L08
  
add       r15d,1
 
jo        short M01_L10
 
cmp       esi,r15d
 
jg        near ptr M01_L02
 
M01_L09
  
mov       rcx,r14
 
call      qword ptr [7FFD31F696D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-40],rax
 
jmp       short M01_L11
 
M01_L10
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L11
  
mov       rcx,rsp
 
call      M01_L15
 
nop
 
mov       rax,[rbp-40]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L12
  
mov       rax,27533810008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rcx,[rdi+18]
 
lea       rdx,[rbp-30]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD324FEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L14
 
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
jmp       near ptr M01_L00
 
M01_L14
  
mov       rax,[rdi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r14,rax
 
jmp       near ptr M01_L01
 
M01_L15
  
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+70]
 
mov       rcx,234A1808B08
 
mov       rdi,[rcx]
 
mov       r14,[rdi+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r14+18],rcx
 
jne       short M01_L16
 
mov       rbx,[rbp-38]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r14+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L20
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFD31F4D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L17
 
M01_L16
  
mov       rdx,[rbp-38]
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
test      eax,eax
 
mov       rbx,[rbp-38]
 
je        short M01_L20
 
M01_L17
  
cmp       qword ptr [rdi+20],0
 
jne       short M01_L18
 
lea       rcx,[rdi+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L20
 
M01_L18
  
lea       rcx,[rdi+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rdi+28]
 
jg        short M01_L19
 
mov       rcx,[rdi+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD324FEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L20
 
M01_L19
  
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
M01_L20
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpace()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,[rbx+290]
 
call      qword ptr [7FFD327D6028]; DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < args.Length; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < args.Length - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = sb.Append(ControlChars.Space);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+70]
 
xor       eax,eax
 
mov       [rbp-40],rax
 
mov       [rbp-30],rax
 
mov       [rbp-50],rsp
 
mov       rbx,rcx
 
test      rbx,rbx
 
je        near ptr M01_L12
 
mov       esi,[rbx+8]
 
test      esi,esi
 
je        near ptr M01_L12
 
mov       rcx,1424940AB00
 
mov       rdi,[rcx]
 
mov       rcx,[rdi+20]
 
mov       [rbp-30],rcx
 
cmp       qword ptr [rbp-30],0
 
je        near ptr M01_L13
 
lea       rcx,[rdi+20]
 
mov       r8,[rbp-30]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-30]
 
jne       near ptr M01_L13
 
M01_L00
  
mov       r14,[rbp-30]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-30],rcx
 
cmp       [r14],r14b
 
mov       rcx,r14
 
xor       edx,edx
 
call      qword ptr [7FFD31F4D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-38],r14
 
xor       r15d,r15d
 
test      esi,esi
 
jle       near ptr M01_L08
 
M01_L02
  
mov       r8d,r15d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L04
 
mov       rcx,[r14+8]
 
mov       eax,[r14+18]
 
lea       edi,[rax+r8]
 
cmp       edi,[rcx+8]
 
ja        short M01_L07
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L03
  
mov       [r14+18],edi
 
M01_L04
  
mov       ecx,esi
 
sub       ecx,1
 
jo        short M01_L09
 
cmp       ecx,r15d
 
jle       short M01_L06
 
mov       ecx,[r14+18]
 
mov       eax,ecx
 
mov       rdx,[r14+8]
 
mov       r8d,[rdx+8]
 
cmp       r8d,eax
 
jbe       short M01_L10
 
mov       word ptr [rdx+rax*2+10],20
 
inc       ecx
 
mov       [r14+18],ecx
 
jmp       short M01_L06
 
M01_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L03
 
M01_L06
  
add       r15d,1
 
jo        short M01_L09
 
cmp       esi,r15d
 
jg        near ptr M01_L02
 
jmp       short M01_L08
 
M01_L07
  
mov       rcx,r14
 
call      qword ptr [7FFD31F4D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L04
 
M01_L08
  
mov       rcx,r14
 
call      qword ptr [7FFD31F696D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-40],rax
 
jmp       short M01_L11
 
M01_L09
  
call      CORINFO_HELP_OVERFLOW
 
M01_L10
  
mov       rcx,r14
 
mov       edx,20
 
call      qword ptr [7FFD31F4D2F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
jmp       short M01_L06
 
M01_L11
  
mov       rcx,rsp
 
call      M01_L15
 
nop
 
mov       rax,[rbp-40]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L12
  
mov       rax,182DB420008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rcx,[rdi+18]
 
lea       rdx,[rbp-30]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD324FEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L14
 
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
jmp       near ptr M01_L00
 
M01_L14
  
mov       rax,[rdi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r14,rax
 
jmp       near ptr M01_L01
 
M01_L15
  
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+70]
 
mov       rcx,1424940AB00
 
mov       rdi,[rcx]
 
mov       r14,[rdi+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r14+18],rcx
 
jne       short M01_L16
 
mov       rbx,[rbp-38]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r14+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L20
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFD31F4D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L17
 
M01_L16
  
mov       rdx,[rbp-38]
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
test      eax,eax
 
mov       rbx,[rbp-38]
 
je        short M01_L20
 
M01_L17
  
cmp       qword ptr [rdi+20],0
 
jne       short M01_L18
 
lea       rcx,[rdi+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L20
 
M01_L18
  
lea       rcx,[rdi+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rdi+28]
 
jg        short M01_L19
 
mov       rcx,[rdi+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD324FEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L20
 
M01_L19
  
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
M01_L20
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpace()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,[rbx+290]
 
call      qword ptr [7FFD327D7AB0]; DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < args.Length; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < args.Length - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = sb.Append(ControlChars.Space);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+70]
 
xor       eax,eax
 
mov       [rbp-40],rax
 
mov       [rbp-30],rax
 
mov       [rbp-50],rsp
 
mov       rbx,rcx
 
test      rbx,rbx
 
je        near ptr M01_L12
 
mov       esi,[rbx+8]
 
test      esi,esi
 
je        near ptr M01_L12
 
mov       rcx,1CBF3008B08
 
mov       rdi,[rcx]
 
mov       rcx,[rdi+20]
 
mov       [rbp-30],rcx
 
cmp       qword ptr [rbp-30],0
 
je        near ptr M01_L13
 
lea       rcx,[rdi+20]
 
mov       r8,[rbp-30]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-30]
 
jne       near ptr M01_L13
 
M01_L00
  
mov       r14,[rbp-30]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-30],rcx
 
cmp       [r14],r14b
 
mov       rcx,r14
 
xor       edx,edx
 
call      qword ptr [7FFD31F4D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-38],r14
 
xor       r15d,r15d
 
test      esi,esi
 
jle       near ptr M01_L09
 
M01_L02
  
mov       r8d,r15d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r14+8]
 
mov       eax,[r14+18]
 
lea       edi,[rax+r8]
 
cmp       edi,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L03
  
mov       [r14+18],edi
 
jmp       short M01_L06
 
M01_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L03
 
M01_L05
  
mov       rcx,r14
 
call      qword ptr [7FFD31F4D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,esi
 
sub       ecx,1
 
jo        short M01_L10
 
cmp       ecx,r15d
 
jle       short M01_L08
 
mov       ecx,[r14+18]
 
mov       eax,ecx
 
mov       rdx,[r14+8]
 
mov       r8d,[rdx+8]
 
cmp       r8d,eax
 
jbe       short M01_L07
 
mov       word ptr [rdx+rax*2+10],20
 
inc       ecx
 
mov       [r14+18],ecx
 
jmp       short M01_L08
 
M01_L07
  
mov       rcx,r14
 
mov       edx,20
 
call      qword ptr [7FFD31F4D2F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M01_L08
  
add       r15d,1
 
jo        short M01_L10
 
cmp       esi,r15d
 
jg        near ptr M01_L02
 
M01_L09
  
mov       rcx,r14
 
call      qword ptr [7FFD31F696D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-40],rax
 
jmp       short M01_L11
 
M01_L10
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L11
  
mov       rcx,rsp
 
call      M01_L15
 
nop
 
mov       rax,[rbp-40]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L12
  
mov       rax,20C84E90008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rcx,[rdi+18]
 
lea       rdx,[rbp-30]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD324FEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L14
 
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
jmp       near ptr M01_L00
 
M01_L14
  
mov       rax,[rdi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r14,rax
 
jmp       near ptr M01_L01
 
M01_L15
  
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+70]
 
mov       rcx,1CBF3008B08
 
mov       rdi,[rcx]
 
mov       r14,[rdi+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r14+18],rcx
 
jne       short M01_L16
 
mov       rbx,[rbp-38]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r14+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L20
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFD31F4D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L17
 
M01_L16
  
mov       rdx,[rbp-38]
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
test      eax,eax
 
mov       rbx,[rbp-38]
 
je        short M01_L20
 
M01_L17
  
cmp       qword ptr [rdi+20],0
 
jne       short M01_L18
 
lea       rcx,[rdi+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L20
 
M01_L18
  
lea       rcx,[rdi+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rdi+28]
 
jg        short M01_L19
 
mov       rcx,[rdi+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD324FEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L20
 
M01_L19
  
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
M01_L20
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpace()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,[rbx+290]
 
call      qword ptr [7FFD327F7588]; DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < args.Length; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < args.Length - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = sb.Append(ControlChars.Space);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+70]
 
xor       eax,eax
 
mov       [rbp-40],rax
 
mov       [rbp-30],rax
 
mov       [rbp-50],rsp
 
mov       rbx,rcx
 
test      rbx,rbx
 
je        near ptr M01_L12
 
mov       esi,[rbx+8]
 
test      esi,esi
 
je        near ptr M01_L12
 
mov       rcx,28FD140AB00
 
mov       rdi,[rcx]
 
mov       rcx,[rdi+20]
 
mov       [rbp-30],rcx
 
cmp       qword ptr [rbp-30],0
 
je        near ptr M01_L13
 
lea       rcx,[rdi+20]
 
mov       r8,[rbp-30]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-30]
 
jne       near ptr M01_L13
 
M01_L00
  
mov       r14,[rbp-30]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-30],rcx
 
cmp       [r14],r14b
 
mov       rcx,r14
 
xor       edx,edx
 
call      qword ptr [7FFD31F6D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-38],r14
 
xor       r15d,r15d
 
test      esi,esi
 
jle       near ptr M01_L08
 
M01_L02
  
mov       r8d,r15d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L04
 
mov       rcx,[r14+8]
 
mov       eax,[r14+18]
 
lea       edi,[rax+r8]
 
cmp       edi,[rcx+8]
 
ja        short M01_L07
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L03
  
mov       [r14+18],edi
 
M01_L04
  
mov       ecx,esi
 
sub       ecx,1
 
jo        short M01_L09
 
cmp       ecx,r15d
 
jle       short M01_L06
 
mov       ecx,[r14+18]
 
mov       eax,ecx
 
mov       rdx,[r14+8]
 
mov       r8d,[rdx+8]
 
cmp       r8d,eax
 
jbe       short M01_L10
 
mov       word ptr [rdx+rax*2+10],20
 
inc       ecx
 
mov       [r14+18],ecx
 
jmp       short M01_L06
 
M01_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L03
 
M01_L06
  
add       r15d,1
 
jo        short M01_L09
 
cmp       esi,r15d
 
jg        near ptr M01_L02
 
jmp       short M01_L08
 
M01_L07
  
mov       rcx,r14
 
call      qword ptr [7FFD31F6D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L04
 
M01_L08
  
mov       rcx,r14
 
call      qword ptr [7FFD31F896D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-40],rax
 
jmp       short M01_L11
 
M01_L09
  
call      CORINFO_HELP_OVERFLOW
 
M01_L10
  
mov       rcx,r14
 
mov       edx,20
 
call      qword ptr [7FFD31F6D2F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
jmp       short M01_L06
 
M01_L11
  
mov       rcx,rsp
 
call      M01_L15
 
nop
 
mov       rax,[rbp-40]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L12
  
mov       rax,2D05F2D0008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rcx,[rdi+18]
 
lea       rdx,[rbp-30]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD3251EF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L14
 
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
jmp       near ptr M01_L00
 
M01_L14
  
mov       rax,[rdi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r14,rax
 
jmp       near ptr M01_L01
 
M01_L15
  
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+70]
 
mov       rcx,28FD140AB00
 
mov       rdi,[rcx]
 
mov       r14,[rdi+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r14+18],rcx
 
jne       short M01_L16
 
mov       rbx,[rbp-38]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r14+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L20
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFD31F6D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L17
 
M01_L16
  
mov       rdx,[rbp-38]
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
test      eax,eax
 
mov       rbx,[rbp-38]
 
je        short M01_L20
 
M01_L17
  
cmp       qword ptr [rdi+20],0
 
jne       short M01_L18
 
lea       rcx,[rdi+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L20
 
M01_L18
  
lea       rcx,[rdi+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rdi+28]
 
jg        short M01_L19
 
mov       rcx,[rdi+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD3251EEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L20
 
M01_L19
  
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
M01_L20
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpace()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,[rbx+290]
 
call      qword ptr [7FFD327E7AB0]; DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < args.Length; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < args.Length - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = sb.Append(ControlChars.Space);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+70]
 
xor       eax,eax
 
mov       [rbp-40],rax
 
mov       [rbp-30],rax
 
mov       [rbp-50],rsp
 
mov       rbx,rcx
 
test      rbx,rbx
 
je        near ptr M01_L12
 
mov       esi,[rbx+8]
 
test      esi,esi
 
je        near ptr M01_L12
 
mov       rcx,1E0E0008B08
 
mov       rdi,[rcx]
 
mov       rcx,[rdi+20]
 
mov       [rbp-30],rcx
 
cmp       qword ptr [rbp-30],0
 
je        near ptr M01_L13
 
lea       rcx,[rdi+20]
 
mov       r8,[rbp-30]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-30]
 
jne       near ptr M01_L13
 
M01_L00
  
mov       r14,[rbp-30]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-30],rcx
 
cmp       [r14],r14b
 
mov       rcx,r14
 
xor       edx,edx
 
call      qword ptr [7FFD31F5D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-38],r14
 
xor       r15d,r15d
 
test      esi,esi
 
jle       near ptr M01_L09
 
M01_L02
  
mov       r8d,r15d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r14+8]
 
mov       eax,[r14+18]
 
lea       edi,[rax+r8]
 
cmp       edi,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L03
  
mov       [r14+18],edi
 
jmp       short M01_L06
 
M01_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L03
 
M01_L05
  
mov       rcx,r14
 
call      qword ptr [7FFD31F5D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,esi
 
sub       ecx,1
 
jo        short M01_L10
 
cmp       ecx,r15d
 
jle       short M01_L08
 
mov       ecx,[r14+18]
 
mov       eax,ecx
 
mov       rdx,[r14+8]
 
mov       r8d,[rdx+8]
 
cmp       r8d,eax
 
jbe       short M01_L07
 
mov       word ptr [rdx+rax*2+10],20
 
inc       ecx
 
mov       [r14+18],ecx
 
jmp       short M01_L08
 
M01_L07
  
mov       rcx,r14
 
mov       edx,20
 
call      qword ptr [7FFD31F5D2F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M01_L08
  
add       r15d,1
 
jo        short M01_L10
 
cmp       esi,r15d
 
jg        near ptr M01_L02
 
M01_L09
  
mov       rcx,r14
 
call      qword ptr [7FFD31F796D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-40],rax
 
jmp       short M01_L11
 
M01_L10
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L11
  
mov       rcx,rsp
 
call      M01_L15
 
nop
 
mov       rax,[rbp-40]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L12
  
mov       rax,22171F20008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rcx,[rdi+18]
 
lea       rdx,[rbp-30]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD3250EF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L14
 
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
jmp       near ptr M01_L00
 
M01_L14
  
mov       rax,[rdi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r14,rax
 
jmp       near ptr M01_L01
 
M01_L15
  
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+70]
 
mov       rcx,1E0E0008B08
 
mov       rdi,[rcx]
 
mov       r14,[rdi+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r14+18],rcx
 
jne       short M01_L16
 
mov       rbx,[rbp-38]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r14+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L20
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFD31F5D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L17
 
M01_L16
  
mov       rdx,[rbp-38]
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
test      eax,eax
 
mov       rbx,[rbp-38]
 
je        short M01_L20
 
M01_L17
  
cmp       qword ptr [rdi+20],0
 
jne       short M01_L18
 
lea       rcx,[rdi+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L20
 
M01_L18
  
lea       rcx,[rdi+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rdi+28]
 
jg        short M01_L19
 
mov       rcx,[rdi+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD3250EEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L20
 
M01_L19
  
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
M01_L20
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpace()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,[rbx+290]
 
call      qword ptr [7FFD327F7AB0]; DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < args.Length; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < args.Length - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = sb.Append(ControlChars.Space);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+70]
 
xor       eax,eax
 
mov       [rbp-40],rax
 
mov       [rbp-30],rax
 
mov       [rbp-50],rsp
 
mov       rbx,rcx
 
test      rbx,rbx
 
je        near ptr M01_L12
 
mov       esi,[rbx+8]
 
test      esi,esi
 
je        near ptr M01_L12
 
mov       rcx,228EA40AB00
 
mov       rdi,[rcx]
 
mov       rcx,[rdi+20]
 
mov       [rbp-30],rcx
 
cmp       qword ptr [rbp-30],0
 
je        near ptr M01_L13
 
lea       rcx,[rdi+20]
 
mov       r8,[rbp-30]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-30]
 
jne       near ptr M01_L13
 
M01_L00
  
mov       r14,[rbp-30]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-30],rcx
 
cmp       [r14],r14b
 
mov       rcx,r14
 
xor       edx,edx
 
call      qword ptr [7FFD31F6D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-38],r14
 
xor       r15d,r15d
 
test      esi,esi
 
jle       near ptr M01_L08
 
M01_L02
  
mov       r8d,r15d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L04
 
mov       rcx,[r14+8]
 
mov       eax,[r14+18]
 
lea       edi,[rax+r8]
 
cmp       edi,[rcx+8]
 
ja        short M01_L07
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L03
  
mov       [r14+18],edi
 
M01_L04
  
mov       ecx,esi
 
sub       ecx,1
 
jo        short M01_L09
 
cmp       ecx,r15d
 
jle       short M01_L06
 
mov       ecx,[r14+18]
 
mov       eax,ecx
 
mov       rdx,[r14+8]
 
mov       r8d,[rdx+8]
 
cmp       r8d,eax
 
jbe       short M01_L10
 
mov       word ptr [rdx+rax*2+10],20
 
inc       ecx
 
mov       [r14+18],ecx
 
jmp       short M01_L06
 
M01_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L03
 
M01_L06
  
add       r15d,1
 
jo        short M01_L09
 
cmp       esi,r15d
 
jg        near ptr M01_L02
 
jmp       short M01_L08
 
M01_L07
  
mov       rcx,r14
 
call      qword ptr [7FFD31F6D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L04
 
M01_L08
  
mov       rcx,r14
 
call      qword ptr [7FFD31F896D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-40],rax
 
jmp       short M01_L11
 
M01_L09
  
call      CORINFO_HELP_OVERFLOW
 
M01_L10
  
mov       rcx,r14
 
mov       edx,20
 
call      qword ptr [7FFD31F6D2F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
jmp       short M01_L06
 
M01_L11
  
mov       rcx,rsp
 
call      M01_L15
 
nop
 
mov       rax,[rbp-40]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L12
  
mov       rax,26978250008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rcx,[rdi+18]
 
lea       rdx,[rbp-30]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD3251EF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L14
 
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
jmp       near ptr M01_L00
 
M01_L14
  
mov       rax,[rdi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r14,rax
 
jmp       near ptr M01_L01
 
M01_L15
  
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+70]
 
mov       rcx,228EA40AB00
 
mov       rdi,[rcx]
 
mov       r14,[rdi+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r14+18],rcx
 
jne       short M01_L16
 
mov       rbx,[rbp-38]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r14+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L20
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFD31F6D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L17
 
M01_L16
  
mov       rdx,[rbp-38]
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
test      eax,eax
 
mov       rbx,[rbp-38]
 
je        short M01_L20
 
M01_L17
  
cmp       qword ptr [rdi+20],0
 
jne       short M01_L18
 
lea       rcx,[rdi+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L20
 
M01_L18
  
lea       rcx,[rdi+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rdi+28]
 
jg        short M01_L19
 
mov       rcx,[rdi+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD3251EEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L20
 
M01_L19
  
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
M01_L20
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformAction()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rsi+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
mov       [rsi+18],rcx
 
mov       [rsp+30],rsi
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFD327D6568]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
M00_L00
  
call      qword ptr [7FFD31D841F8]
 
int       3
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       short M01_L03
 
M01_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M01_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M01_L02
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L02
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L01
  
mov       [rbx+18],ebp
 
M01_L02
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        short M01_L00
 
M01_L03
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M01_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L05
  
mov       rcx,rbx
 
call      qword ptr [7FFD31F4D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L02
 
M01_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M02_L10
 
mov       rcx,1ACCD802B38
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M02_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M02_L11
 
M02_L00
  
mov       rdi,[rbp-28]
 
M02_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFD31F4D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M02_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L09
 
M02_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M02_L05
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M02_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L04
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M02_L07
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L06
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L03
  
mov       [rdi+18],r14d
 
M02_L04
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        short M02_L02
 
jmp       short M02_L09
 
M02_L05
  
call      CORINFO_HELP_RNGCHKFAIL
 
M02_L06
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L03
 
M02_L07
  
mov       rcx,rdi
 
call      qword ptr [7FFD31F4D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M02_L04
 
M02_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M02_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFD31F696D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M02_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L10
  
mov       rax,1ED537C0008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD324FEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M02_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M02_L00
 
M02_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M02_L01
 
M02_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,1ACCD802B38
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M02_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M02_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFD31F4D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M02_L15
 
M02_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M02_L18
 
M02_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M02_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M02_L18
 
M02_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M02_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD324FEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M02_L18
 
M02_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M02_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformAction()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rsi+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
mov       [rsi+18],rcx
 
mov       [rsp+30],rsi
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFD327E6568]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
M00_L00
  
call      qword ptr [7FFD31D941F8]
 
int       3
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       short M01_L03
 
M01_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M01_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M01_L02
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L02
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L01
  
mov       [rbx+18],ebp
 
M01_L02
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        short M01_L00
 
M01_L03
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M01_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L05
  
mov       rcx,rbx
 
call      qword ptr [7FFD31F5D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L02
 
M01_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M02_L10
 
mov       rcx,257FB002B38
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M02_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M02_L11
 
M02_L00
  
mov       rdi,[rbp-28]
 
M02_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFD31F5D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M02_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L09
 
M02_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M02_L05
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M02_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L04
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M02_L07
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L06
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L03
  
mov       [rdi+18],r14d
 
M02_L04
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        short M02_L02
 
jmp       short M02_L09
 
M02_L05
  
call      CORINFO_HELP_RNGCHKFAIL
 
M02_L06
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L03
 
M02_L07
  
mov       rcx,rdi
 
call      qword ptr [7FFD31F5D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M02_L04
 
M02_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M02_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFD31F796D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M02_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L10
  
mov       rax,29884CB0008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD3250EF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M02_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M02_L00
 
M02_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M02_L01
 
M02_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,257FB002B38
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M02_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M02_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFD31F5D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M02_L15
 
M02_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M02_L18
 
M02_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M02_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M02_L18
 
M02_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M02_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD3250EEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M02_L18
 
M02_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M02_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformAction()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rsi+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
mov       [rsi+18],rcx
 
mov       [rsp+30],rsi
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFD327F63E8]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
M00_L00
  
call      qword ptr [7FFD31DA41F8]
 
int       3
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M01_L05
 
M01_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M01_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M01_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L04
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M01_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L01
  
mov       [rbx+18],ebp
 
jmp       short M01_L04
 
M01_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
call      qword ptr [7FFD31F6D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        near ptr M01_L00
 
M01_L05
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M01_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M02_L10
 
mov       rcx,161FFC02B38
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M02_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M02_L11
 
M02_L00
  
mov       rdi,[rbp-28]
 
M02_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFD31F6D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M02_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L09
 
M02_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M02_L04
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M02_L07
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L07
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M02_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L03
  
mov       [rdi+18],r14d
 
jmp       short M02_L07
 
M02_L04
  
call      CORINFO_HELP_RNGCHKFAIL
 
M02_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L03
 
M02_L06
  
mov       rcx,rdi
 
call      qword ptr [7FFD31F6D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M02_L07
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        near ptr M02_L02
 
jmp       short M02_L09
 
M02_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M02_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFD31F896D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M02_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L10
  
mov       rax,1A289AB0008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD3251EF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M02_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M02_L00
 
M02_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M02_L01
 
M02_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,161FFC02B38
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M02_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M02_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFD31F6D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M02_L15
 
M02_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M02_L18
 
M02_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M02_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M02_L18
 
M02_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M02_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD3251EEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M02_L18
 
M02_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M02_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformAction()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rsi+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
mov       [rsi+18],rcx
 
mov       [rsp+30],rsi
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFD327D60B8]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
M00_L00
  
call      qword ptr [7FFD31D841F8]
 
int       3
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       short M01_L03
 
M01_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M01_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M01_L02
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L02
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L01
  
mov       [rbx+18],ebp
 
M01_L02
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        short M01_L00
 
M01_L03
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M01_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L05
  
mov       rcx,rbx
 
call      qword ptr [7FFD31F4D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L02
 
M01_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M02_L10
 
mov       rcx,2C4C2008B08
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M02_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M02_L11
 
M02_L00
  
mov       rdi,[rbp-28]
 
M02_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFD31F4D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M02_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L09
 
M02_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M02_L05
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M02_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L04
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M02_L07
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L06
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L03
  
mov       [rdi+18],r14d
 
M02_L04
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        short M02_L02
 
jmp       short M02_L09
 
M02_L05
  
call      CORINFO_HELP_RNGCHKFAIL
 
M02_L06
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L03
 
M02_L07
  
mov       rcx,rdi
 
call      qword ptr [7FFD31F4D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M02_L04
 
M02_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M02_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFD31F696D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M02_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L10
  
mov       rax,30553F60008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD324FEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M02_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M02_L00
 
M02_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M02_L01
 
M02_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,2C4C2008B08
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M02_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M02_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFD31F4D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M02_L15
 
M02_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M02_L18
 
M02_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M02_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M02_L18
 
M02_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M02_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD324FEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M02_L18
 
M02_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M02_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformAction()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rsi+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
mov       [rsi+18],rcx
 
mov       [rsp+30],rsi
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFD327F7618]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
M00_L00
  
call      qword ptr [7FFD31DA41F8]
 
int       3
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M01_L05
 
M01_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M01_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M01_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L04
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M01_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L01
  
mov       [rbx+18],ebp
 
jmp       short M01_L04
 
M01_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
call      qword ptr [7FFD31F6D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        near ptr M01_L00
 
M01_L05
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M01_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M02_L10
 
mov       rcx,2160400AB00
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M02_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M02_L11
 
M02_L00
  
mov       rdi,[rbp-28]
 
M02_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFD31F6D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M02_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L09
 
M02_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M02_L04
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M02_L07
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L07
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M02_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L03
  
mov       [rdi+18],r14d
 
jmp       short M02_L07
 
M02_L04
  
call      CORINFO_HELP_RNGCHKFAIL
 
M02_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L03
 
M02_L06
  
mov       rcx,rdi
 
call      qword ptr [7FFD31F6D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M02_L07
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        near ptr M02_L02
 
jmp       short M02_L09
 
M02_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M02_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFD31F896D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M02_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L10
  
mov       rax,21583080008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD3251EF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M02_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M02_L00
 
M02_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M02_L01
 
M02_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,2160400AB00
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M02_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M02_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFD31F6D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M02_L15
 
M02_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M02_L18
 
M02_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M02_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M02_L18
 
M02_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M02_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD3251EEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M02_L18
 
M02_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M02_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformAction()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rsi+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
mov       [rsi+18],rcx
 
mov       [rsp+30],rsi
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFD327E7B40]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
M00_L00
  
call      qword ptr [7FFD31D941F8]
 
int       3
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M01_L05
 
M01_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M01_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M01_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L04
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M01_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L01
  
mov       [rbx+18],ebp
 
jmp       short M01_L04
 
M01_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
call      qword ptr [7FFD31F5D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        near ptr M01_L00
 
M01_L05
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M01_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M02_L10
 
mov       rcx,22D8FC0AB00
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M02_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M02_L11
 
M02_L00
  
mov       rdi,[rbp-28]
 
M02_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFD31F5D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M02_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L09
 
M02_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M02_L04
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M02_L07
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L07
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M02_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L03
  
mov       [rdi+18],r14d
 
jmp       short M02_L07
 
M02_L04
  
call      CORINFO_HELP_RNGCHKFAIL
 
M02_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L03
 
M02_L06
  
mov       rcx,rdi
 
call      qword ptr [7FFD31F5D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M02_L07
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        near ptr M02_L02
 
jmp       short M02_L09
 
M02_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M02_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFD31F796D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M02_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L10
  
mov       rax,26E1DB60008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD3250EF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M02_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M02_L00
 
M02_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M02_L01
 
M02_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,22D8FC0AB00
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M02_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M02_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFD31F5D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M02_L15
 
M02_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M02_L18
 
M02_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M02_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M02_L18
 
M02_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M02_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD3250EEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M02_L18
 
M02_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M02_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformAction()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rsi+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
mov       [rsi+18],rcx
 
mov       [rsp+30],rsi
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFD327E7B40]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
M00_L00
  
call      qword ptr [7FFD31D941F8]
 
int       3
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       short M01_L03
 
M01_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M01_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M01_L02
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L02
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L01
  
mov       [rbx+18],ebp
 
M01_L02
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        short M01_L00
 
M01_L03
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M01_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L05
  
mov       rcx,rbx
 
call      qword ptr [7FFD31F5D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L02
 
M01_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M02_L10
 
mov       rcx,24024808B08
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M02_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M02_L11
 
M02_L00
  
mov       rdi,[rbp-28]
 
M02_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFD31F5D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M02_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L09
 
M02_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M02_L04
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M02_L07
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L07
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M02_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E45B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L03
  
mov       [rdi+18],r14d
 
jmp       short M02_L07
 
M02_L04
  
call      CORINFO_HELP_RNGCHKFAIL
 
M02_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L03
 
M02_L06
  
mov       rcx,rdi
 
call      qword ptr [7FFD31F5D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M02_L07
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        near ptr M02_L02
 
jmp       short M02_L09
 
M02_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M02_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFD31F796D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M02_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L10
  
mov       rax,280B6700008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD3250EF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M02_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M02_L00
 
M02_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M02_L01
 
M02_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,24024808B08
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M02_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M02_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFD31F5D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M02_L15
 
M02_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M02_L18
 
M02_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M02_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M02_L18
 
M02_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M02_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD3250EEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M02_L18
 
M02_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M02_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformAction()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rsi+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
mov       [rsi+18],rcx
 
mov       [rsp+30],rsi
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFD327F7B40]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
M00_L00
  
call      qword ptr [7FFD31DA41F8]
 
int       3
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       short M01_L03
 
M01_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M01_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M01_L02
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L02
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L01
  
mov       [rbx+18],ebp
 
M01_L02
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        short M01_L00
 
M01_L03
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M01_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L05
  
mov       rcx,rbx
 
call      qword ptr [7FFD31F6D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L02
 
M01_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M02_L10
 
mov       rcx,25127408B08
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M02_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M02_L11
 
M02_L00
  
mov       rdi,[rbp-28]
 
M02_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFD31F6D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M02_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L09
 
M02_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M02_L05
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M02_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L04
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M02_L07
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L06
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFD31E55B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L03
  
mov       [rdi+18],r14d
 
M02_L04
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        short M02_L02
 
jmp       short M02_L09
 
M02_L05
  
call      CORINFO_HELP_RNGCHKFAIL
 
M02_L06
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L03
 
M02_L07
  
mov       rcx,rdi
 
call      qword ptr [7FFD31F6D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M02_L04
 
M02_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M02_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFD31F896D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M02_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L10
  
mov       rax,291B9320008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD3251EF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M02_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M02_L00
 
M02_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M02_L01
 
M02_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,25127408B08
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M02_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M02_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFD31F6D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M02_L15
 
M02_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M02_L18
 
M02_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M02_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M02_L18
 
M02_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M02_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFD3251EEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M02_L18
 
M02_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M02_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret